Picture books that answer children's questions, for 1st and 2nd graders. - Title: Why? How? 1st Grade - Publisher: Takahashi Shoten - Price: 800 yen (excluding tax) - Title: Why? How? 2nd Grade - Publisher: Takahashi Shoten - Price: 800 yen (excluding tax) - Title: Why? How? Math for 1st & 2nd Grade - Publisher: Takahashi Shoten - Price: 850 yen (excluding tax) - Title: Mysteries of Japan: Why? How? - Publisher: Takahashi Shoten - Price: 1000 yen (excluding tax) This 4-book set will help expand your child's "I want to know!" and make learning time even better! "Why? How? 1st & 2nd Grade" gently explains everyday questions and nurtures curiosity. "Why? How? Math" helps understand the mechanisms of numbers with fun illustrations. "Mysteries of Japan" introduces culture and history in an easy-to-understand way. These 4 books will broaden conversations when read by parents and children together, and improve reading comprehension and thinking skills. Perfect for a special time of deepening learning, enjoying the long autumn nights with your child. *These books have been read by children, so there may be some folds, etc. Please consider this before purchasing. Thank you for looking.