A business book offering practical know-how for creating and nurturing a vibrant network of contacts. - Title: Referral Marketing - Author: Aki Kano - Theme: How to build and cultivate a thriving network - Features: Know-how practiced by 190,000 people worldwide - Language: Japanese The book itself has no folds or creases. The corners are clean, and the obi (sleeve) is included. * As shown in the third photo, there is a slight warp. Please confirm. Thank you for your understanding. If you are interested, please read it! I will carefully package and ship it.