I was happy to find this book in a used book store. Duchamp books are relatively hard to find, and some of the best ones are very expensive. I scanned the table of contents and the back cover so you can see what is here. It is a good sized 8.4 x 11 inch paperback filled with illustrations and important essays. I think of it as a very good addition to my art library and to my Duchamp collection in particular. Worth the low prices offered on Amazon!