Pop Goes the Weasel: The Secret Meanings of Nursery Rhymes
by Albert Jack
Originally published in 2008, this is, as its subtitle implies, an academic look at nursery rhymes, their historical origins and what they were originally intended to mean, making it intriguing cultural anthropology. There's more nursery rhymes included than I heard growing up, so there's all the more to learn.
Bookshelf status: mostly unread.