It's important that partners cooperate--interpreting the bidding correctly and being on the same wavelength--and here's how they can do just that. There are answers to such questions as "What can I infer from my partner's lead?" and "Is my partner's suggested line of defense worth pursuing?" as well as discussions of maintaining communication, avoiding a bath coup, blocking and unblocking, creating an entry, helping a partner avoid mistakes, and much more, Example hands and revision quizzes accompany the explanations, reinforcing the invaluable tactical lessons.