Networking Seminar Networking Overhaul The Strongest Way of Working First-Class, Second-Class, and Third-Class Workers First-Class, Second-Class, and Third-Class Small Talk Multi-Potentiality The Complete Output Guide The Skill of Investing in People The Power of Questioning and more Due to the provision of used books at a low price, there may be discoloration, scratches, stains, writing, signs of use not shown in the photos, and missing supplements. The shipping method may be changed after purchase. Returns for these reasons will be at the customer's request, so please understand before purchasing.