I was able to read it through once. There are no noticeable scratches, stains, writing, or wear and tear. *Please understand that this is a used item to prevent any problems. A business book introducing 29 training methods to dramatically improve thinking skills. - Title: Concrete → Abstract Training: 29 Books to Dramatically Improve Thinking Skills - Author: Isao Hosoya - Publisher: PHP Institute - ISBN: 978-4-569-84599-9 - Price: 1,030 yen Thank you for looking.