ERIN and PHILIP STEAD are a picture book pair that have won numerous awards. A Sick Day for Amos McGee, which has sold over 400,000 copies, won the Caldecott Award and was designated a New York Times Best Illustrated Book and a Publishers Weekly Best Children's Book. Bear Has a Tale to Tell, an E. Lockhart book, is another popular title. Honor Book for the B White Award. They most recently partnered with Mark Twain on The Purloining of Prince Oleomargarine, a huge New York Times Bestseller that has received widespread media coverage, including features on CBS Sunday Morning and The New Yorker. They reside in the state of Michigan.