When Diana was a tiny little girl, her uncle went on a trip to London, and brought her back the best thing in the whole world. This:

This is one of those strange magical books that exerts a powerful pull on all children who come into contact with it. Even those in my own family who find that some other witches make them well, let's say nervous, love this book. It's incredibly simple, has very few words on each page (which makes it excellent for those struggling but avid readers among us) and the illustrations are strange and amazing.
Like this:

And this:

And this:

We always looked for copies because so many children have tried to beg, borrow, and steal it from us (coveters ranged in age from 1 to 8) but somehow, though it's apparently iconic and well known from the 1970s, it's still mostly available only in the U.K. What's with that? And what's with all the brilliant children's book authors being British, anyway? If I were a sociologist or a PhD candidate, I am sure I could formulate some sort of sensible theory answering that question. Anyway.
You can find used copies here or you can be lucky enough to have a traveling uncle of your own. We've had our copy for nine years now, and it's falling apart, but is still as loved as ever. I hope you find your own.