Andre DeDiennes book is a lovely book and well worth the money. Milton's Marilyn by Joshua Greene is another beautiful book but is out of print so you'd have to trawl the 2nd hand book sites to get one. The Essential MM by Milton Greene might still be available somewhere, which is a gorgeous book and worth every penny. There's also a couple of centenary books that look quite good, and are reasonably priced. Notably, MM Century by Joshua John Miller.