In the modern game of bridge, the majority of auctions are competitive, and every improving player needs to acquire the tools to handle this kind of bidding. This textbook covers the basic building blocks of competitive bidding (takeout and negative doubles, pre-empts, overcalls, competing over their no-trump openings and dealing with competition over your own, forcing pass auctions, the Law of Total Tricks). It describes a number of useful conventions and gadgets with which the reader needs to be familiar, and suggests other optional treatments for partnership discussion. There are reviews and quizzes, and the final chapter is a quiz covering all the material.