This is an adventure into quantum mechanics from the Hippo Family Club. What is quantum mechanics? For those who are curious but think it's difficult, this is a very easy-to-understand and readable book. This item has been stored at home for a long time, so the exterior has aged overall. The contents of the book are intact with no tears. Please refrain from purchasing if you are concerned. ⭐️ I am offering this at a low price because I am decluttering due to a move. I will only be able to conduct transactions until March 25th. Thank you for your understanding. Thank you for looking.