I'm finished reading the CMA publication,South of the Sahara. It's a beautiful book with full page color plates of various masks and carvings housed at the CMA. It includes descriptions of where the pieces came from, how they were used, and points out important features of each piece. If you want to see these and some of the other 290+ pieces, follow this link to the CMA African Art Collection where you can view them on-line. Or better yet....plan a trip to the CMA. It is definetely on my list of things to do soon....I want a much closer look.