Tammi Sauer is the author of the bestselling Cowboy Camp, Bawk & Roll, and The Twelve Days of Christmas in Oklahoma (all Sterling). She's an active blogger (tammisauer.com) and is highly involved in the children's writer community. Tammi has worked as a teacher and library media specialist and now lives in Edmond, OK, with her husband and their two children.

Dan Santat is the author and illustrator of Sidekicks and The Guild of Geniuses (Arthur A Levine Books), which was a Society of Illustrators Original Art Show Selection and won the Los Angeles Society of Illustrators Bronze Medal for Book Illustration. He won the Silver Medal from the Society of Illustrators for Oh No! (Or How My Science Project Destroyed the World), written by Mac Barnett (Disney-Hyperion). In addition, Dan illustrated Rhea Perlman's Otto Undercover series (Katherine Tegan Books/HarperCollins) and The Secret Life of Walter Kitty, written by Barbara Jean Hicks (Knopf Books for Young Readers). He is also the creator of the Disney animated hit The Replacements. Dan lives in Southern CA. Find out more at dantat.com.