Mary Pope Osborne's dad was in the army, so every year or two her family would move to a different state or country. By the time she was fifteen, Mary had lived in thirteen different houses and gone to eight different schools.

Writing children's books was a perfect career for Mary because she could still travel the world - but be back home int ime for dinner. She has written almost a hudnred books, including biographies, mysteries, picture books. Her Magic Tree House series has taken her readers on a journey through time - from the prehistoric land of dinosaurs forward. In her latest book, Abe LIncoln at Last!, siblings Jack and Annie meet Abraham Lincoln in the 1860's.