"Children's Drucker's Words: Developing the Power to Achieve Results!" "Children's Art of War by Sun Tzu: Cultivating a Strong and Flexible Mind!" Takashi Saito, Nihon Tosho Center #oyuBooks #oyuPictureBooks/ChildrensBooks ✅ Set of 2 books (not sold separately) ✅ Immediate purchase OK without comment ✅ No price negotiation for this product alone Used item, stored at home. We look forward to your purchase if you understand. ・No smokers, no pets ・We will prioritize the buyer even during negotiation ・We cannot create a dedicated page ・Recycled materials may be used for packaging"