I just finished The Unicorn Tapestries in The Metropolitan Museum of Art. The book itself includes quite a bit about medieval hunting and the subject of the tapestries is a unicorn being hunted, so I wouldn't recommend it as a gift for someone who is fond of unicorns! However, it hints at the adventures of collecting and seeking to understand art. The tapestries have a great many mysterious aspects to them, and they themselves had vanished for centuries and then had to be tracked down. I want to note in this book here as I think I might come back to it some day for a bit of inspiration for some fiction.