Off Topic: On the subtle mystery of Sam & Dave Dig a Hole

I feel instinctively that a good children's book should be two things at once. Take something like Home, by Carson Ellis. On one level this is an imaginative exploration of the various ways that various people might live. People who might find a home in a shoe, say, or perched at the top of a mountain. But a good children's book should be two things at once, and the deeper, most satisfying aspect of Home involves tracking a number of items that pop up across the sweep of the book's individual pages - a tea cup, a flag - and then seeing them arranged in the final home we get to see, which happens to be Carson Ellis' home where she creates her art.