Don't waste your money on the newer edition! Check our feedback as a seller on Ebay for proof: Ebay Feedback. This listing is for (Computational Physics: Problem Solving with Python) 2nd edition (Pictured on the Left) by (Landau, Rubin H.; P?ez, Manuel J; Bordeianu, Cristian C.). This edition has word-for-word the same information as ISBN: 3527413154 the 3rd edition (Pictured on the Right), except for a small update and a different picture on the cover. All our books are in decent, usable condition or better and may or may not contain: highlighting, writing, cover and page wear, cds and additional material. If you are unsatisfied in any way with our product you can return it within 30 days for a refund.