Comic books 2019 w/ month not specified

Add to cart Near Mint $7.00

Add to cart Near Mint $7.00

Volume 2 - 2nd and later printings. "The Green Door!" Collects Immortal Hulk (2018) #6-10.

Written by Al Ewing. Art by Joe Bennett, Lee Garbett, and Martin Simmonds. Cover by Alex Ross.

Bruce Banner is alive and on the loose - and now the entire world knows it.

Soon the Hulk finds himself hunted once again - this time by the government, Alpha Flight, the mysterious Shadow Base...and the Avengers! Someone's going to find him first, but which option is least bad? It might not matter, because Bruce has bigger problems. Something terrible has infected him. Something with unspeakable plans for humanity. And the only one who knows about this dark infection...is the Hulk!

Meanwhile, Carl "Crusher" Creel was just trying to live. Now, to save what he's built for himself, he must do the impossible. The Absorbing Man must kill the Immortal Hulk! But the Hulk is the one thing standing between the world of the living - and the Green Door!

Softcover, 128 pages, full color.

Cover price $15.99.

Volume 3 - 2nd and later printings. "Hulk in Hell!" Collects Immortal Hulk (2018) #11-15.

Written by Al Ewing. Art by Joe Bennett. Cover by Alex Ross.

Carl Creel is in Hell. Walter Langkowski is in Hell. Eugene Judd is in Hell. Los Diablos is in Hell. Shadow Base is in Hell. New Mexico is in Hell. We are all in Hell...and so is the Immortal Hulk! And now the creature that rules Hell has come to collect.

It whispers through many mouths. It destroys with many hands. Its only weapon is hate. It wears human souls like masks to work its will. But in the lowest Hell, underneath all others, all the masks come off - and the One Below All is revealed! Bruce Banner belongs to him. But the Hulk...not even Hell is strong enough to hold the Hulk.

Meanwhile, in the world above, two familiar faces resurface: Betty Banner and Doc Samson! What will their returns mean for the Immortal Hulk?

Softcover, 112 pages, full color.

Cover price $15.99.

Add to cart CGC 9.6 $700.00 View scans Paper: White Label #4155855003 Consignment. 3% buyer's premium charged at checkout.

Add to cart CGC 9.4 $500.00 View scans Paper: White Label #4155855002 Consignment. 3% buyer's premium charged at checkout.

Story by Omar Mirza. Art by Alex Genaro. Cover by Joao Marreiro. Cover price $0.12.

Add to cart Near Mint $3.95

ITEM #1 - Art by Patrick Gleason. Incoming (2019 Marvel) issue 1A cover. 1 poster folded. 24" x 36".

NOTE: Poster comes folded.

Replica of the original 1962 Incredible Hulk #1 cover. Made from 1oz of .999 fine silver and limited to 1000 copies. Cover price $0.12.

Volume 6 - 1st printing. Cover by Annie Stegg Gerard. Back Cover by Candice Broersma. With a cover painting by Annie Stegg Gerard, Infected by Art contains one of the most diverse groups of artists ever selected by their jury. 274 artists are represented with works ranging from traditionally painted to digital, illustrations in pencil, pen and ink or gold leaf, to sculpted works. This is a more character-driven selection than Spectrum, with a strong emphasis on the figure, nudes, fantasy characters and horror. The jury was comprised of artists Vanessa Lemen, Colin and Kristine Poole, Rob Rey, and Beautiful Bizarre EIC Danijela Krha Purssey. Yoann Lossels image The Rise won IBA 6s grand prize, and artists Forest Rogers, Olivier Villoingt, Candice Broersma, and Patrick Jones receiving other grand prize awards. Yoann Lossel also received the Body of Work award which is an honor bestowed by his peers and were treated to four more pages of his work. Foreword by Bill Cox, profiles of all jury members with their own artwork, Grand Prize Winners, then sections on Traditional Painting, Digital Painting, Drawing, and Sculpture. Index with contact information for all artists featured. Hardcover, 9-in. x 12-in., 326 pages, full color. Cover price $39.99.

Add to cart Near Mint $3.95

ITEM #1 - Iron Man 2020 Poster (2019 Marvel) by In-Hyuk Lee. Cover of Iron Man 2020 (2020 Marvel) #1E. Poster is folded. 24" x 36".

NOTE: Poster comes folded.

Add to cart CBCS 9.8 $250.00 View scans Paper: White Second Printing. Label #21-254A14C-013 Consignment. 3% buyer's premium charged at checkout.

Add to cart CGC 9.4 $199.00 or Best Offer View scan Paper: White Second Printing Label #3969453010 Consignment. 3% buyer's premium charged at checkout.

2nd Printing. Written by Eve Ewing. Art by Kevin Libranda and Luciano Vecchio. Cover by Luiano Vecchio. THE FORMER STAR OF INVINCIBLE IRON MAN HEADLINES HER OWN SOLO SERIES! When a group of world leaders is taken hostage by one of Spider-Man's old foes, Riri Williams will have to step up her game. And she'll be stunned when someone from back in Sweet Home Chicago enters her life... CHAMPIONS artist Kevin Libranda joins award-winning poet Eve Ewing, as Ironheart steps boldly out of Tony Stark's shadow to forge her own future! 36 pages, full color. Rated T Cover price $4.99.

2nd printing. Some stories were removed with the 2nd printing due to disagreements with the publisher. Written by Ben Slabak, Stephanie Cannon, Eastin DeVerna, Troy Vevasis, Peter Simeti, Scott Bryan Wilson, Terry Mayo and Jeremy Massie. Art by Salomon Farias, Javi Laparra, Shawn Daley, Aleksandar Jovic, Michael Oppenheimer, Ken Knudtsen, Dave Swartz and Jeremy Massie. Cover by Eric Powell. Focusing on horror, sci-fi, and fantasy - this bi-monthly ongoing double-sized anthology features the best and brightest upcoming creators. Each issue features stunning cover art, interviews, ongoing stories, a comic contest, and previews of upcoming Alterna titles. And the best part? It comes out on a Wednesday, of course. 32 pages, full color. Rated T Cover price $1.50.

By Barry Gregory, Steven Butler, and Thomas S. Florimonte Jr. As an orphan from the US Midwest, John Aman is taken to a secret lamasery in the Himalayas. There he spends decades honing himself to physical and mental perfection while also being trained in all manner of arcane arts and practices so that he might return to America as its protector. The All-New Adventures of a Classic Comic Book Hero! John Aman Amazing Man reads like a blockbuster, crossover/event-style comic. Populated by updated versions of classic characters created by legendary creators such as Jack Kirby, Will Eisner, Bill Everette, and many, many more, John Aman Amazing Man is genre-bending, broad-canvas, long-form, serialized, old school action/adventure storytelling. You know, the kind of comics you thought no one was making any more! John Aman Amazing Man is based on the classic Golden Age character created by comics great Bill Everette (creator of Namor the Submariner and co-creator of Marvels Daredevil). This is the collected edition of the full six-issue storyline How Sharper Than a Dragons Tooth. Softcover, full color, 6 3/4" x 10 1/4", 240 pages.

1st printing.

Story and art by Frank Robbins.

For a decade has been reprinting the daily version of Frank Robbins' masterpiece, Johnny Hazard.

Now, after scouring collections all over the world for a set of the color tabloid Sundays, Hermes Press will produce an archival, full size reprint of these exciting Sunday stories. Believed by many to be in the same league as the best Sundays of the period, these stories read like a motion picture from the era and feature characters that are truly classics.

This special limited edition has the look, feel and size of the original Sundays and is accompanied by historical material, essays, and original artwork.

Hardcover, 11-in. x 14-in., 288 pages, full color.

Cover price $80.00.

Comics Elite exclusive variant by Ryan Kincaid, limited to 200 copies. Story and art by Sorah Suhng. Softcover, 208 pages, full color.

Add to cart Near Mint $3.95

ITEM #1 - King Thor Poster (2019 Marvel) art by Esad Ribic. Cover to King Thor (2019) #1A. Poster is folded. 24" x 36".

NOTE: Poster comes folded.

1st Printing - Story by Iruka Shiomiya based on an original story by Keiichi Sigsawa, Character Design by Kouhaku Kuroboshi. So, whos the kid? My name is… ××××× hesitated for a moment, turning slightly to look back along the road they were traveling. Beyond the red horizon, her homelands gates sank into the distance, never to be seen again. Facing forward once more, ××××× looked past Kinos side to focus intently on the path ahead before answering. My name is— Kino travels with the trusty talking motorrad, Hermes. The duo are always together, with Hermes providing speed, and Kino providing balance. They stay in each country for no more than three days, as a rule—enough time to learn about each destinations unique customs and people. And so Kino and Hermes journey ever onward… Softcover Manga, 5.5" x 7.5" 182 pages, B&W. Cover price $12.95.

1st Printing - Story by Iruka Shiomiya based on an original story by Keiichi Sigsawa, Character Design by Kouhaku Kuroboshi. Based on the hit novel series, Kinos Journey now has a beautiful manga adaptation with illustrations by Iruka Shiomiya (Ningen Series). Kinos Journey is about a character named Kino who travels around the world with a talking motorcycle named Hermes. Together they travel to different countries and meet the inhabitants there. Kinos policy is to only stay three days in every town without exception, saying its enough time to learn about the each place and moving on to explore the next new place. Softcover Manga, 5.5" x 7.5" 174 pages, B&W. Cover price $12.95.

1st Printing - Story by Iruka Shiomiya based on an original story by Keiichi Sigsawa, Character Design by Kouhaku Kuroboshi. In a vast forest lies a certain country, a place blessed with abundance, so wonderful that all travelers want to visit at least once. The country is so popular, in fact, that anyone who wishes to stay must enter the tournament held in the coliseum and battle for citizenship and the right to create a new law for the land… Softcover Manga, 5.5" x 7.5" 182 pages, B&W. Cover price $12.95.

1st Printing - Story by Iruka Shiomiya based on an original story by Keiichi Sigsawa, Character Design by Kouhaku Kuroboshi. Based on the hit novel series, Kinos Journey now has a beautiful manga adaptation with illustrations by Iruka Shiomiya (Ningen Series). Kinos Journey is about a character named Kino who travels around the world with a talking motorcycle named Hermes. Kino travels to many mystical worlds, each with its unique customs and people. Kinos policy is to only stay three days in every town without exception, saying its enough time to learn about the each place and moving on to explore the next new place. Softcover Manga, 5.5" x 7.5" 182 pages, B&W. Cover price $12.95.

1st Printing - Story by Iruka Shiomiya based on an original story by Keiichi Sigsawa, Character Design by Kouhaku Kuroboshi. Based on the hit novel series, Kinos Journey now has a beautiful manga adaptation with illustrations by Iruka Shiomiya (Ningen Series). Kinos Journey is about a character named Kino who travels around the world with a talking motorcycle named Hermes. Kino travels to many mystical worlds, each with its unique customs and people. Kinos policy is to only stay three days in every town without exception, saying its enough time to learn about the each place and moving on to explore the next new place. Softcover Manga, 5.5" x 7.5" 182 pages, B&W. Cover price $12.95.

1.75" diameter collectible challenge coin celebrating the 25th anniversary of Lady Death.

Duality Lady Satanus Edition Cover by Anna Zhuo - Limited to 44 copies. Lady Death pin-up artwork by hot artists including Matt Busch, Scott Lewis and Peter Vale.

Story by Joe Kitchell. Art by Fauzy Zulkivar Firmansyah. The Last - Tales of the Fenris Wolves. 32 pages. B&W. Cover price $3.99.

Add to cart VF/NM 9.0 $41.00 View scan

Issue #1. 2019. Meet the Infernal Realms' most inclusive super group! Lesbiana Hombre! Gay Chicano Female trapped inside the White Masculine body she never made! Redwood City! He may look like a tree, but he's actually a mid-sized metropolitan California tourist destination (and excretes his own pine cones!) Borderline Bobbiey! Amazingly, he changes gender identity every time you refer to her by a different pronoun! Just watch him! You go, girl! Belvedere! Tired of being a stallion centaur, Belvedere demands her right to give birth as a broodmare! Watch, as the strangest heroes of all go head-to-head with Cerebus! Horizontal format. 6.5" x 10.25". 24 pages. Black and white. Cover price $4.00.

Volume 1 - 2nd and later printings. "Dust!" Collects Life Is Strange (2018 Titan) #1-4.

Written by Emma Vieceli. Art by Claudia Leonardi. Cover by Andrea Izzo and Claudia Leonardi.

A new graphic novel set in the world of the award-winning smash hit video game, Life is Strange!

One year after their home was destroyed, the story continues for beloved heroines Max and Chloe, as they face fate and twist timelines in the emotional reunion fans never thought they'd see!

Softcover, 112 pages, full color.

Cover price $16.99.

4th Printing. Written by Darcy Van Poelgeest. Art and Cover by Ian Bertram. MINISERIES PREMIERE! Director/screenwriter DARCY VAN POELGEEST boasts a long list of awards and accolades for his storytelling prowess and brings the same writing finesse to IAN BERTRAM's breathtakingly detailed artwork in the gorgeous, hyper-detailed miniseries LITTLE BIRD. With the same limitless scope as a new EAST OF WEST or SAGA and the drama and surrealism of Akira, LITTLE BIRD follows a young resistance fighter who battles against an oppressive American Empire and searches for her own identity in a world on fire. 40 pages, full color. Rated M Cover price $3.99.

Add to cart Near Mint $2.65

Add to cart Near Mint $2.65

Pre-Order Edition. Written by Vita Ayala. Art by Kano. Cover by Khary Randolph. Wanted fugitive Livewire reveals that the Psiot Security & Education Program is the evil organization O.M.E.N. to the world! Will Phoebe Daniels choose to defend O.M.E.N. or go with Livewire and fight? Find out in the climatic final issue of Livewire Arc 2: 'Guardian'! 40 pages, full color. Rated T+ Cover price $3.99.

Add to cart Near Mint $6.95

Add to cart Near Mint $6.95

Volume 1 - 2nd and later printings. "Fugitive!" Collects Livewire (2018 Valiant) #1-4.

Written by Vita Ayala. Art by Raul Allen and Patricia Martin. Cover by Adam Pollina.

For the first time, Livewire takes center stage!

Accomplice. Mentor. Savior. And now, Enemy of the State. Seeking to protect other vulnerable superpowered psiots like herself, Livewire plunged the United States into a nationwide blackout, causing untold devastation. With the whole world hunting her, what kind of hero will Livewire be... or will she beon one at all?

Softcover, 112 pages, full color.

Cover price $9.99.

Add to cart Fine $4.49

Written and illustrated by Abby Jame. Ashcan size, 8 pages, full color.

San Diego Comic-Con Exclusive Variant Cover by Siya Oum - limited to 200 copies. Story and Art by Siya Oum. It's mayhem in The Wasteland as Siya Oum's best-selling Lola XOXO reaches its pivotal third volume! Lola has spent the better part of her life attempting to reunite with her long-lost parents following a catastrophic nuclear level event in The United States. But, like all things in the apocalyptic 'Wasteland,' the truth always comes with a price-and oftentimes that means violence - or worse, death! Superstar creator Siya Oum provides a thrilling first issue debut with her riveting story and gorgeous illustrations for the beginning of this climactic Lola XOXO Volume 3! 32 pages, full color. Rated T

Add to cart Near Mint $2.65

Written by Sammie Crowley. Art by Ari Castleton. Join Lincoln, his best friend Clyde, and Lincoln's ten sisters Lori, Leni, Luna, Lynn, Luan, Lucy, Lola, Lana, Lisa, and Lily as they deck out THE LOUD HOUSE for Halloween fun! Plenty of tricks and treats await from the creative team of Nickelodeon's Emmy-winning animated series, THE LOUD HOUSE.

Add to cart Fine $2.65

Written by Gerry Duggan. Art by Matteo Lolli. Cover by Russell Dauterman. THE X-MEN SAIL AT DAWN! Even in this glorious new dawn, Mutantkind faces hardships and oppression from their human counterparts. Led by Captain Kate Pryde and funded by Emma Frost and the Hellfire Trading Company, Marauders Storm, Pyro, Bishop and Iceman sail the seas of the world to protect those hated and feared! 44 pages, full color. Rated T+ Cover price $4.99.

Add to cart Near Mint $3.95

ITEM #1 - Marvel Comics 1000 (2019 Marvel) art by Alex Ross. Cover of Marvel Comics 1000 (2019 Marvel) #1A. Poster is folded. 24" x 36".

NOTE: Poster comes folded.

ITEM #2 - Marvel Comics 1000 (2019 Marvel) Art by Mr. Garcin. Cover of Marvel Comics 1000 (2019 Marvel) #1H. Poster is folded. 24" x 36".

NOTE: Poster comes folded.

Add to cart Near Mint $3.95

ITEM #1 - Marvel Monsters Poster (2019 Marvel) art by Nick Bradshaw. Cover of Marvel Monsters (2019 Marvel) #1A. Poster is folded. 24" x 36".

NOTE: Poster comes folded.

2nd Edition - Volume 1 - 2nd and later printings. Collects Mask (1991 Dark Horse) #0-4, Mask: Returns (1992) #1-4, and Mask Strikes Back (1995) #1-5.

Written by John Arcudi. Art and cover by Doug Mahnke.

The bestselling comic trilogy that inspired the blockbuster film The Mask is collected in this omnibus edition of gruesome hilarity!

A weird mask of unknown origin and power is discovered and imbues its wearer with limitless cartoon character invulnerability that takes the nerdy Stanley Ipkiss, the police, the mafia, and the monstrous mob muscleman Walter on a colliding violent path of homicidal mayhem, lunacy, and destruction!

Softcover, 6-in. x 9-in., 376 pages, full color.

Cover price $24.99.

Add to cart Very Fine $9.49

2nd and later printings.

Written by Mikhail Bulgakov and Andrzej Klimowski. Art by Andrzej Klimowski and Danusia Schejbal.

The Devil arrives in Moscow, accompanied by a bizarre band of acolytes: a witch, an assassin, and a talking cat. Together, they systematically wreak havoc in the Russian capital. Caught up in the chaos are two lovers: the Master, a writer broken by criticisms of his novel about Pontius Pilate, and Margarita, for whom the Devil has his own plans.

At once a love story, a meditation on the nature of good and evil, and a brilliant satire of mid-20th-century Soviet life, The Master and Margarita was initially banned by the very bureaucracy it criticized.

In this captivating, beautifully drawn graphic novel, Andrzej Klimowski and Danusia Schejbal bring to vibrant life the masterpiece that has since become the defining work of 20th-century Russian literature.

Softcover, 128 pages, PC/PB&W.

Cover price $24.99.

Japanese Doujinshi Art Book. Winter 2019. Cover by March Day. 7 1/4" X 10". Japanese Language.

Add to cart Fine $4.49

Written by M.K. Palmer. Art by Minh Hang. On a quest for the gods, Psi journeys into the realm of the dead. But the further she descends, Psi learns the gods are not as benevolent as she once believed. Now, Psi must risk her life for gods she no longer trusts or face the wrath of Zeus! 36 pages, full color.

Add to cart Very Fine $2.65

A collection of sketches featuring creatures and characters from M.K. Palmer's Meraki. Softcover, 5 3/8" x 8 1/2", 24 pages, B&W.

Chapter 1: The Beginning of the End - Story by James Honesty IV, Art by Fernando Lyons. An ancient war that started in the heavens has spread to the Earth. Powerful forces of good and evil continue their struggle for dominance, as the world sits on the brink of destruction. With the fate of the world at stake, a diverse group of individuals, endowed with supernatural talents, join forces to confront the forces hell-bent on world domination. From the minds of James Honesty IV and Fernando Lyons, comes Messengers of the Hidden Truth! 38 pages, full color. Cover price $9.99.

Chapter 2: Redemption - Story by James Honesty IV, Art by Fernando Lyons. Chapter Two picks up shortly after the events of the first chapter. The bodies continue to pile up, as the mysterious new drug 'Livision' continues to spread like wildfire through the streets of Seraph City. New players enter the fray, as the ancient battle between good and evil rages on. From the minds of James Honesty IV and Fernando Lyons, comes Messengers of the Hidden Truth! 24 pages, full color. Cover price $4.99.

Chapter 3: Whispers - Story by James Honesty IV, Art by Fernando Lyons. The Messengers of the Hidden Truth saga continues with pivotal Chapter 3. As Darrick's inner demon threatens to consume him, Gothi strikes out to find the truth about her mysterious origin. Seraph City has become a powder keg on the verge of explosion, as civil unrest grows, after the slaying of a local police officer at the apparent hands of members of a social activist group. Meanwhile, a dangerous new threat to Seraph City enters the fray, as the ancient battle between good and evil rages on. From the minds of James Honesty IV and Fernando Lyons, comes Messengers of the Hidden Truth! 24 pages, full color. Cover price $4.99.

Art book featuring the work of Mike Pikazo. Over 250 personal and commercial illustrations. Softcover, 9" x 11-3/4, 224 pages, full color, Japanese language.

Volume 1 - 2nd and later printings. "Straight Out of Brooklyn!" Collects Miles Morales: Spider-Man (2019 Marvel) #1-6.

Written by Saladin Ahmed. Art by Javi Garron. Cover by Brian Stelfreeze.

Miles Morales swings back into the spotlight!

When the rampaging Rhino and a cadre of mysterious criminals start plaguing Brooklyn, things take a dark turn for the young Spider-Man! What mystery lurks under the surface of this newest villainous uprising? Why does the Rhino have minions? And who is the new antagonist who may just become Miles' most dangerous foe? Maybe Captain America has the answers!

Then, get ready for...Miles Morales' day off! Vice Principal Drutcher is determined to figure out the reason for his student's tardiness and absences, so Miles, Judge and Barbara must stay one step ahead by playing hooky - while our hero tries to keep his secret safe from all of them!

Plus: the quiet-but-deadly Tombstone! And introducing...Starling! Is she friend or foe? And is she single?

Softcover, 136 pages, full color. Rated T

Cover price $17.99.

2nd and later printings.

Written by Sfe R. Monster. Art and cover by Sarah Graley.

The first graphic novel set in the world of the gaming phenomenon Minecraft!

Tyler is your everyday kid whose life is changed when his family has to move from the town he's always known. Thankfully, Tyler has a strong group of friends forever linked in the world of Minecraft! Tyler, along with his friends Evan, Candace, Tobi, and Grace, have been going on countless adventures together across the expanses of the Overworld and are in need of a new challenge. The group decides to go on the Ultimate Quest-to travel to the End and face off against the ender dragon!

o Over 144 Million copies of Minecraft sold on all platforms!
o Minecraft is the second best-selling game of all time!

Softcover, 6-in. x 9-in., 88 pages, full color.

Cover price $9.99.

Add to cart Fine $2.65

Add to cart Fine $2.65

Issue #1 of 4 - 2019. Written by Greg Wright, illustrated by Ken Lamug. It was an age of gods and monsters. Dr. Frankenstein created his own new Adam, and that creature made creatures of his own. After losing control, Dr. Frankenstein made robots to re-establish law and order. 6 1/2-in. x 10 1/4-in., 24 pages, full color. Cover price $3.99.

Add to cart Very Fine $2.65

Add to cart Very Fine $2.65

Issue #2 of 4 - 2019. Written by Greg Wright, illustrated by Ken Lamug. It was an age of gods and monsters. Dr. Frankenstein created his own new Adam, and that creature made creatures of his own. After losing control, Dr. Frankenstein made robots to re-establish law and order. 6 1/2-in. x 10 1/4-in., 24 pages, full color. Cover price $3.99.

Add to cart Fine $2.65

Add to cart Fine $2.65

Issue #3 of 4 - 2019. Written by Greg Wright, illustrated by Ken Lamug. It was an age of gods and monsters. Dr. Frankenstein created his own new Adam, and that creature made creatures of his own. After losing control, Dr. Frankenstein made robots to re-establish law and order. 6 1/2-in. x 10 1/4-in., 24 pages, full color. Cover price $3.99.

Add to cart Fine $2.65

Add to cart Fine $2.65

Issue #4 of 4 - 2019. Written by Greg Wright, illustrated by Ken Lamug. It was an age of gods and monsters. Dr. Frankenstein created his own new Adam, and that creature made creatures of his own. After losing control, Dr. Frankenstein made robots to re-establish law and order. 6 1/2-in. x 10 1/4-in., 24 pages, full color. Cover price $3.99.

Add to cart FN/VF 7.0 $30.00 or Best Offer View scan Consignment. 3% buyer's premium charged at checkout. Graded by MCS, not consignor. Other items consigned by vamp driver

1st printing. Art book featuring the work of "Fly". Softcover, 7-1/4" x 10-1/4", 128 pages, full color, Japanese language.

Add to cart Near Mint $3.95

ITEM #1 - Morbius Poster (2019 Marvel) Art by Ryan Brown. Art originally featured as cover for Morbius (2019) #1A. Poster is folded. 24" x 36".

NOTE: Poster comes folded, features title logos.