Up for sale is my unopened, sealed 6-cassette set of "The Feynman Lectures, Volume 4: Electrical and Magnetic Behavior". I purchased this set in 2004, and it has been on my bookshelf all these years in a non-smoker home. It's time to find this rare set a new home.

Please look at the photos carefully and be sure to ask any questions you have before buying as this is sold as-is.

Shipping will be by USPS Media Mail (slow but inexpensive!).