Appearing every week in the Saturday Telegraph's Weekend section, these highly enjoyable puzzles are designed to test your general knowledge to its limits - they should be done surrounded by encyclopedias, Who's Who and an atlas, and probably with a drink to hand. This new collection contains sixty crosswords, offering hours of pleasurable mental exertion as the correct answer is sought. And as always, if in the end defeat is accepted, the solutions are included at the back of the book.