This is a set of two books that provide practical knowledge useful for business. There is some wear and tear. - Title: Tattta Hitori no Nekkyo: Shigoto to Jinsei ni Kiku 51 no Kotoba (The Passion of One: 51 Words That Work for Work and Life) - Author: Toru Mijiro - Title: Saikyo Mafia no Shigoto Jutsu (The Work Techniques of the Strongest Mafia) - Author: Michael Franzese - ISBN: 978-4-7980-5100-8 - ISBN: 978-4-7993-0130-6 - Price: Regular price 1300 yen + tax - Price: Regular price 1500 yen + tax Thank you for looking.