The upper volume has some stains and tears on the cover. All three books have some writing in pencil and marker. This is a set of the upper and lower volumes, along with the problem book, which are important texts for learning the basics of physical chemistry. - Author: Gordon M. Barrow - Edition: 6th Edition - Title: Barrow Physical Chemistry (Vol. 1) - Title: Barrow Physical Chemistry (Vol. 2) - Title: How to Solve Problems in Barrow Physical Chemistry Thank you for looking.