Not long ago I happened to see a documentary on TV, "The Origins of Oz", the story of L. Frank Baum, how he came to write his famous Oz books, and how events in his life influenced his writings. Realizing that I had never read any of Baum's books, and in fact my only exposure to Oz had been the classic MGM movie, I decided to fill this gap in my literary life. I'm not sure that listening to an audio book counts as reading it, but I shall assume it does, and besides, it's a great way to pass the time while I'm walking the dog. While these are intended as children's stories, they are imaginative enough that an adult can enjoy them too, ideally to enjoy them while reading them aloud to a child. In this particular book, we all know the nursery rhymes, and what we have here is not by any means, authentic origin stories, but rather what might be called semi-plausible back stories. We learn, for example, how a certain plucky lad happened to be in possession of twenty-four black birds, how they ended up in the king's kitchen, and why they were all still alive when the pie was opened. Over all I was impressed by Baum's imagination as well as his story telling ability. If you have children, or grand children, you could do a lot worse than spending time reading these stories to them.