Bob McKinnon is author of the New York Times best seller, Three Little Engines and host of Attribution, a PBS podcast on success and gratitude. He lives in a small village north of New York City, near a train station with his wife, dog and three daughters. He writes and teaches about issues related to the American Dream and directs a nonprofit whose mission is to inspire people of all ages to reflect on who and what has helped them along the way. Learn more about his work and his own journey "over the mountain" at www.movingupusa.com.

Lou Fancher and Steve Johnson have illustrated more than fifty books together. A versatile artistic team, they enjoy discovering the perfect style for a variety of texts. Among their books are My Many Colored Days, by Dr. Seuss; Shh! Bears Sleeping, by David Martin; A Poem for Peter, by Andrea Davis Pinkney; and The Salamander Room, by Anne Mazer. The classic book, The Little Engine That Could, is a favorite from their childhoods--and as adults, "I think I can," is a daily mantra. They live in northern California.