The Great Courses: Science in the Twentieth Century — A Social-Intellectual Survey. Complete set of 6 DVDs plus the original course guidebook. Taught by Professor Steven L. Goldman, Lehigh University. Published by The Teaching Company. Covers the major scientific developments of the 20th century across physics, biology, chemistry, and the philosophy of science. Ideal for lifelong learners, educators, or science enthusiasts. All 6 discs included. Guidebook included. Good condition — normal shelf wear consistent with age and use. Please feel free to message with any questions.