Kathleen Krull is a prominent biographer for young people. Her Wilma Unlimited was named an ALA Notable Book; her Lives of the Musicians was a Boston Globe/Horn Book Honor Award winner; and her other nonfiction has won countless other awards.

Kathleen also wrote A Woman for President: The Story of Victoria Woodhull for Walker & Company. She and her husband, illustrator Paul Brewer, live in San Diego, California.