This is a Sonic Joke book, but what kind of jokes are inside? It's an odd format book, extra tall, but not that wide. Sometimes oddly shaped books become uncommon because they are hard to store. It uses the slightly 'off' looking Tails art, Robotnick, & Knuckles so it was likely around the time of S&K release. Notice the little 'ha ha ha' around Robotnick. This is by Ladybird books, which has released several of the Sonic books among these pages.