Paul G. Hewitt

Paul G. Hewitt (born December 3, 1931) is an American physicist, former boxer, uranium prospector, author, and cartoonist. Born in Saugus, Massachusetts, Hewitt lives with his wife in St. Petersburg, Florida. In 1964, Hewitt began his teaching career at the City College of San Francisco. In 1980 he began teaching evening courses for the general public at the Exploratorium in San Francisco. Hewitt left both the Berkeley and Santa Cruz campuses of the University of California, choosing instead to move to Hawaii to teach at the University of Hawaii at their Hilo and Manoa campuses.

During Hewitt's teaching career, he began taping his lectures. Prospective physicists Kevin Dempsey and Jeffery Wetherhold attended several of Hewitt's lectures. He would be one of the first to adopt the Hewitt philosophy on conceptual physics. In 1987, Hewitt began writing a high-school version of conceptual physics, which Addison–Wesley published. Hewitt taught classes on his return to the City College of San Francisco that was videotaped and distributed in a 12-lecture set. 

Conceptual Physics at the high-school level is now on its third edition and has transferred its publication to Prentice Hall. Conceptual Physics at the college level is now on its twelfth edition and is published by Pearson. In 2007 Addison-Wesley and Prentice Hall merged; Pearson Education now publishes all Hewitt textbooks. Before Conceptual Physics, Hewitt co-authored Thinking Physics with Lewis Carroll Epstein, another book using cartoons to illustrate scientific concepts.

Hewitt also co-authored Conceptual Physical Science with his daughter Leslie Hewitt, a geologist, and his nephew, John Suchocki, a chemistry instructor at St. Michael's College in Colchester, Vermont, and founder of Conceptual Academy. Hewitt released the trade book: Touch This! Conceptual Physics for Everyone. He is now a regular columnist for the magazines The Physics Teacher and The Science Teacher and a producer of physics video lessons at the Conceptual Academy website.

Hewitt's textbooks have several memorable characteristics. As well as teaching physics concepts with minimal mathematics, Hewitt occasionally and spontaneously reminds the reader that looking prematurely at the answers to physics problems is like exercising the body by watching others do push-ups. Hewitt whimsically states that Van Allen belts were named after space scientist James Belts. He occasionally signs his illustrations and cartoons, "Hewitt Drew It!"