Gear is a six-issue comic book limited series written and illustrated by Doug TenNapel. It was published in six issues by Fireman Press Ltd, a production company and publishing house. The issues were reprinted in trade paperback form by Image Comics in 2007. Many of the characters presented in the book were retooled for TenNapel's Nickelodeon cartoon series Catscratch.Gear featured black-and-white artwork mostly created with an ink brush by TenNapel.