This is the first book I can clearly recall reading on my own (I'm 39). My Dad used to read it to me, and one day I read it to him. I remember him proudly calling my Mom into the room to hear me read it from cover to cover. I recently discovered a copy at the "used books for sale" section of my library, and excitedly rushed home to read it to my five year old. He loves it. This is a conceptually brilliant book for children. This is a great book for several reasons. First, it teaches the virtues of kindness and hard work. Second, it has superbly crafted simple sentence construction, and it's written to facilitate early reading by using word and concept repetition. Third, it has great illustrations and easy-to-read type. It also has three chapters, which was a new concept for my son.
This is one of the all time great early reader books. If there is an early reader in you life, get it for him or her!