"Sukkiri Wakaru Nissho Boki Level 2 Commercial Bookkeeping Textbook + Workbook, 10th Edition & Sukkiri Wakaru Nissho Boki Level 2 Industrial Bookkeeping Textbook + Workbook, 7th Edition" Publisher: TAC Price: 1400 yen x 2 books + tax ★ Both books were purchased new, and I read about a third of each. There is a slight stain on the bottom of the Commercial Bookkeeping Level 2 book, although it's not very noticeable (see photo 4). However, both books are clean inside with no writing and are almost like new. ★ In my opinion, I think these books are sufficient for studying.