Jason Carter Eaton is the author of How to Train a Train, illustrated by John Rocco, and Great, Now We've Got Barbarians!, illustrated by Mark Fearing, among other books for children.

Jason Carter Eaton has written for such diverse venues as McSweeney's, Cartoon Network, MGM, and BBC Radio and has done extensive work with 20th Century Fox animation/Blue Sky Studios.

He lives in Westchester, New York.

Matt Rockefeller is an illustrator and comic artist from Tucson, AZ who loves to depict places and tell stories through pictures.

His work has appeared in a variety of formats, including book covers, picture books, and animation. Recent books include Train from Workman Publishing and the 5 Worlds graphic novel series from Random House, and Pop! with First Second.