◯ Contains a lot of helpful information for management and human resource development. ・ Purchased new. ・ Stored on a bookshelf after reading. ・ No underlining or highlighting. (Apologies if I missed anything) ◯ Sold only as a set of two books. ◯ Immediate purchase is welcome! ◯ To prevent trouble, returns are not accepted except in the case of receiving a product different from what was ordered. ※ Please purchase only if you understand that these are used items and have been stored by a private individual.