A popular two-book set from the "Philosophizing Frog" series! These picture books, with their cute, comic-strip-like illustrations, delve into profound philosophical themes and are popular worldwide! ⚫︎ "Thinking Frog" - Volume 3: "Thinking Frog, Even More" - Volume 4: "Thinking Frog, Carefully" Published by Fukuinkan Shoten, by Kazuo Iwamura List price: ¥1575 each Both books have covers and obi (paper bands) and are clean with no noticeable stains or wear, but there are some scuffs and wrinkles on the top of the covers. The books themselves are in good condition, so you can remove the covers if you are concerned. Although in good condition, please understand that these books have been stored on a home bookshelf. *Price reduced!* Philosophy picture book, comic picture book, comic philosophy, Frog's philosophy