The Most Awesome Cosplay of New York Comic Con, Day 2

We got Marvels, we got samurais, we even got a Dimitrescu or two.

The Most Awesome Cosplay of New York Comic Con, Day 1

New York cosplayers are not playing when it comes to amazing, geeky looks. Check them out.

The io9 Halloween Costume Show Returns, and Demands Your Creepy Cosplay

Spooky season is here! We want to see what dazzling outfits you've got planned.

15 Excellent Nerdy Nonfiction Books

We all love escapist fantasy but sometimes we want our reading material to be a little more grounded.

Absolutely Everything Announced at San Diego Comic-Con 2022

From movies to TV shows to comics and more, here's all of io9's Comic-Con coverage in one handy location.

The Winners and Losers of San Diego Comic-Con 2022

Comic-Con is done and dusted for another year—but what was hot and what was... not?

The Most Awesome Cosplay of San Diego Comic-Con, Day 4

Get one last hit of Comic-Con cosplay goodness for the year.

The Most Awesome Cosplay of San Diego Comic-Con 2022, Day 3

And here we are at the end of our weekend, folks! We hope you enjoyed these photos.

The Most Awesome Cosplay of San Diego Comic-Con 2022, Day 2

The con must go on, and so will the excellent cosplay!

The Coolest Cosplay of WonderCon 2022

WonderCon 2022 gave Anaheim the chance to host some fabulous cosplay from across the multiverse.

A New Book Digs Into Cosplay’s History—and the Fan Spirit That Keeps It Thriving

Get a first look at io9 alumni Andrew Liptak's upcoming book Cosplay: A History: The Builders, Fans, and Makers Who Bring Your Favorite Stories to Life.

San Diego Comic-Con Special Edition Seems… Weird

The in-person convention happening Thanksgiving weekend is heavy on gaming, light on Hollywood.

The Most Wonderfully Nerdy Halloween Costumes From io9’s Readers

We asked, you delivered, and oh, what a delightful bounty of costumes from 2021's spooky celebrations!

io9 Halloween Costume Show Week 3: Open Wide, Mr. Allen

Got a costume ready, working on it, or still thinking about what to wear? Come show us!

The 12 Best (or at Least the Most Reasonable) Halloween Costumes of 2021

We've trashed the worst. Now it's time to sing the praises of the perfectly fine!

The 19 Worst Halloween Costumes of 2021

You shouldn't be caught dead in these. You shouldn't be found alive in them, either.

io9 Halloween Costume Show Week 2: Into the Spooky-Verse

Got a costume ready, working on it, or still thinking about what to wear? Come show us!

The io9 Halloween Costume Show Is Back, and Ready for Frights

It's once again time to show us what you've got sorted for spooky season.

io9 Wants Cosplayers for Our San Diego Comic-Con at Home 2021 Video

Ready to show off that cosplay you've been working on all year? Now's your chance!

Our Favorite io9 Videos of 2020