Paul G. Hewitt was a Silver Medallist Flyweight Boxing Champion for New England State at the age of 17. He was then a cartoonist, sign painter, and uranium prospector before beginning his physics studies.

Hewitt's first book, “Conceptual Physics,” now in its Ninth Edition, was published in 1971, while he was teaching at City College of San Francisco. He has also served as a guest lecturer at the University of California at Berkeley, the University of California at Santa Cruz, the University of Hawaii at Manoa, and most recently at the University of Hawaii at Hilo. Hewitt recently retired fro