Today’s new item on my site is medieval rather than my usual haunts of Antiquity and American history — but I’m not too old to learn new tricks, even if my Dog has to teach them to me. It’s in fact such a departure for me that I have no commentary and no context for it, and those who find it useful will just have to enjoy it: David Yellin and Israel Abrahams’ elegant, streamlined little book, Maimonides.