Award-winning artist David Macaulay introduces readers to his hilarious new creations, Sloth and Sengi, in How Machines Work: Zoo Break! Get your cogs turning w

David Macaulay's troupe of curious mammoths lead you through the basics of physics, biology, and chemistry in this unconventional and highly original guide to s

Introduces six simple machines, describing how they work in more complex machinery and how they are used every day.

Albert and his trusty mare, June, set off early on market day to sell their melons in town, thus beginning a mysterious chain of events in a thought-provoking j

Read and find out about six simple machines—the lever, the wheel and axle, the pulley, the ramp, the wedge, and the screw—in this colorfully illustrated non