25 BRIDGE CONVENTIONS YOU SHOULD KNOW It doesn't take long before beginning bridge players want to know more about bidding systems, and especially about conventions. The authors have selected 25 basic conventions and treatments that novice players can easily assimilate into their own methods. They explain clearly and concisely how to use each one, and how it fits into a standard bidding system. Each section ends with a summary chart as well as a self-quiz to ensure that the reader has understood the concepts.