This 2013 ATP Low Pressure Boilers Study Guide 4th Edition~ Has Writing On Answers is in good preowned condition. The only damage I see is the previous owner decided to write in all the answers in the fill in the blank spots, would suggest still studying. I see little to no other damage on this classic Pressure Boilers Study Guide. Please see photos for exact condition, because I do not accept returns. Thank you for stopping by, new items added weekly. 🙂