Martha Freeman worked as a reporter and teacher before becoming a full-time writer of books for young readers, including the Edgar Award–nominated Zap!, Born Curious, The Secret Cookie Club series, Who Stole Halloween?, and Effie Starr Zook Has One More Question. She also collaborated with NASA astronaut Mark Kelly on the Astrotwins books.

The prolific writer lives in Oregon, and will visit LaserPhilly on November 8th for a special event celebrating her latest book: Kitty vs. Kindergarten.