The "Lectures in Theoretical Physics (Volume 1&2)" textbook set was published in 1961 by various authors and published by W.A. Benjamin Hll. The books cover the subject area of theoretical physics in English language. This trade paperback set is a valuable resource for students and educators interested in the field of physics, specifically focusing on the more theoretical aspects of the subject. With free shipping included, this textbook set offers a convenient and comprehensive learning experience for those looking to delve into the world of theoretical physics.