David J. Griffiths (born 1942) is a U.S. physicist and educator. The United States of America —commonly referred to as the Physics (Greek Physis - φύσις in everyday terms is the Science of Matter and its motion. He has worked at Reed College since 1978, where he is currently the Howard Vollum Professor of Science. Reed College is a private, independent Liberal arts college located in southeast Portland Oregon. Howard Vollum (1913-1986 an engineer scientist and philanthropist was the co-founder of Tektronix Corporation and endowed the Vollum Institute. He is easily confused with the late physicist David J. Griffiths of Oregon State University. Oregon State University ( OSU) is a Coeducational public Research[[ university]] located in Corvallis, Oregon, United
Griffiths was trained at Harvard University (B.A., 1964; M.A., 1966; Ph.D., 1970). "PhD" redirects here for other uses see PhD (disambiguation. His doctoral work ("Covariant Approach to Massless Field Theory in the Radiation Gauge") on theoretical particle physics was supervised by Sidney Coleman. Particle physics is a branch of Physics that studies the elementary constituents of Matter and Radiation, and the interactions between them Sidney Richard Coleman ( 7 March 1937 &ndash 18 November 2007) was an eminent theoretical physicist who studied under Murray He is principally known as the author of three highly regarded textbooks for undergraduate physics students: Introduction to Elementary Particles (published in 1987), Introduction to Quantum Mechanics (published in 1995, second edition published 2004), and Introduction to Electrodynamics (third edition published in 1999). In some Educational systems undergraduate education is Post-secondary education up to the level of a Bachelor's degree. He was also the recipient of the 1997 Robert A. Millikan award reserved for "those who have made outstanding scholarly contributions to physics education". Robert Andrews Millikan (March 22 1868 – December 19 1953 was an American experimental physicist, and Nobel laureate in physics for his measurement 
These books are now standard undergraduate texts.