The "Things They Don't Teach You in School Series" 1-3, 6, 8, 11, 12, 17, 22, 31 Obunsha Price: ¥850 #Obunsha #Books #Lifestyle/Hobbies & Entertainment ★ I've only collected the ones that seem interesting. I read "Friendships" and "How to Use Money" quite a bit, so they show some wear, but the others haven't been read much, so they're in good condition.