Mazie's Amazing Machines

Sheryl Haft (sherylhaft.com) founded Let’s Engineer!, a pre-school and elementary after-school program that teaches engineering principles through design and invention-building. Sheryl’s love of tinkering began by working in the garage with her dad, creating patented inventions. She is the author of other joyful, imaginative books: I Love You, Blankie, Baby Boo, I Love You and Goodnight Bubbala. She and her family live in New York City and Wyoming.

Jeremy Holmes (jeremyholmesstudio.com) is an internationally renowned children’s book illustrator. His picture books include There Was an Old Lady Who Swallowed a Fly (winner of the BolognaRagazzi Opera Prima Award), Poem-mobiles (by J. Patrick Lewis and Douglas Florian), The Eye that Never Sleeps (by Marissa Moss), and Road Trip (by Claudia Friddell). He and his family live in Pennsylvania.