Hard covered book titled HOW DOES IT WORK? by Richard M. Koff, Illustrations by the Author and Richard Rooman, 1961.  288 pages.

Topics include:

• Aerosols,
• Arches & Bridges,
• Bearings,
• Cameras,
• Cigarette Lighters,
• Doorbells,
• Electric Blankets,
• Elevators,
• Film,
• Fishing Reels,
• Guns,
• Hinges,
• Ionizers,
• Lawn Mowers,
• Pumps,
• Remote controllers,
• Scales,
• Telephones,
• Trains,
• Venetian Blinds,
• Waffle Irons,

and much more.

This vintage book is in VG condition. Pages are clean and intact, and the binding is tight. It would make a delightful addition to your library .