A set of popular books useful for business and self-improvement. - Book Title: Tattta Hitori no Nekkyo (The One-Person Enthusiasm) - Book Title: CAN'T HURT ME - Book Title: GIVE & TAKE - Book Title: The 7 Habits of Highly Effective People - Book Title: DIE WITH ZERO - Book Title: Essentialism - Book Title: Lanchester Strategy: The Law of "Weakness Reversal" Sold as a set. No individual sales. No discounts. Immediate purchase welcome. I've read through all of them once, but they are in very good condition. I think it's a great deal compared to buying them at the list price. Thank you for looking.