2011
The 7th edition had its beginning about 2006, when decisions were made about the format, the contents and the people who would be involved in putting it together. It departs from previous editions in several ways. Foremost is the medium: two CD-ROM volumes with one book whose contents match the first CD. All previous editions were one-volume books.
This edition introduces photographs—lots of them. It comes with an index instead of a cross-reference table. In the print volume, both pages and font are bigger. The four-part organization introduced in 1971, with a very large alphabetical part one, has been replaced by about 40 chapters and appendices. The printed book and the first CD both comprise chapters 1 to 26. The second volume, CD only, comprises eight chapters of biographical entries and three appendices on Masterpoints achievements and tournament results.
Read more about this topic: The Official Encyclopedia Of Bridge, Seventh Edition