This is an updated version of the author's 2005 publication Polish Club (ISBN 83-919009-2-4) and adds modern ideas from other systems into the framework of the 'two-way' 1-club opening at bridge. The book is intended for two groups of readers: those interested in the Polish Club system of playing bridge; those who want to get better understanding of trendy bidding treatments. Skill level: Intermediate/Advanced. Includes quizzes and a special section on slam bidding with examples of mistakes made by experts in tournament play.