"Just So Stories" by Rudyard Kipling
The Just So Stories were written in 1902, just after Kipling completed Kim, a book that many consider to be his masterwork.
There's not much to say about it really. It's a lot like Aesop's Fables. It is a mixture of poetry and prose. It was written for children. It's really short. One of the stories explains how the leopard got his spots, another explains how the elephant got his long nose, and another explains how kangaroo got his long legs.
It's mildly amusing, but I don't think most kids would get it. Adults might enjoy some of Kipling's wordplay, but that's about it.