Suzanne Slade holds a mechanical engineering degree and worked on NASA's Delta IV rockets. Her recent titles include The Inventor's Secret , Friends for Freedom , With Books and Bricks , and Climbing Lincoln's Steps . She lives in Illinois, and she invites you to visit her online at suzanneslade.com. Veronica Miller Jamison is an illustrator whose clients include Essence Magazine , Bloomingdales, and Hallmark. A Computer Called Katherine is her debut picture book. She is an alumna of Howard University and Drexel University, and she lives outside Philadelphia. She invites you to visit her online at veronicamarche.com.