Bridge at the Enigma Club [Winkler]

This is a book that can be enjoyed on several levels:

1) as a fun read with lots of great bridge deals;
2) as a glimpse of what the game might be like if technology were applied to it with more imagination;
3) as an exposition of the author's ideas on encrypted bidding and encrypted signals - bids and plays where, in full compliance with the Laws of Bridge, partners can exchange information that cannot be deciphered by their opponents.

Consumer warning: these methods, though fascinating and ingenious, are illegal in many bridge jurisdictions.