ASHLEY WOLFF has written and/or illustrated over 40 books, including The Pen that Pa Built,Only the Cat Saw, Baby Beluga, Stella and Roy,and the ever-popular Miss Bindergarten series. She lives in San Francisco, California. David Edwards is addicted to living history museums and lives in Tucson, Arizona, with his wife and four children. THE PEN THAT PA BUILT is his first published book.