Leif B. Sorensen 
Contemporary Bridge Bidding [EPUB ebook] 
A Guide for Players at the Intermediate Level

The reader for whom this new bookis intended should be familiar with thefundamentals of duplicate bridge. The book is aimed at intermediateplayers with a range of expertise, who are intent on improving theirbidding skills. The main focus is on the two-over-one game force, whichtogether with its adjunct components comprises a bidding system thathas gained enormous popularity. The last two chapters are devotedto an introduction of two systems that are widely played around theworld: Precision Bridge and Acol Bridge.