Inspired by Alburt & Palatniks book on chess strategy - it reminded me on a de Chirico's painting! - I searched for funny covers of chess books.

This one about Caro Kann is on the top:::
https://images.chesscomfiles.com/proxy/files.chesscomfiles.com/images_users/tiny_mce/Crazychessplaya/marilyn_monroe/http/10e287b100.jpg

From there association leads to this one:
http://i.kinja-img.com/gawker-media/image/upload/s--ttxBeDYZ--/17kzujrx22pmpjpg.jpg

Then, for middle-aged players in the midlife crisis::
http://shop.chess.co.uk//v/vspfiles/photos/CB01164-2T.jpg

Another one, for psycho players:::
http://4.bp.blogspot.com/-Uspur5pTry0/Um0zIBp_odI/AAAAAAAALGU/LotXqG5XvQE/s640/WolgaGambit.jpg

All good. I prefer the 'Marilyn' one.

The first thing that came to mind was the Rudel books that all have odd covers.

http://ecx.images-amazon.com/images/I/51L-OEaEzUL._SX331_BO1,204,203,200_.jpg