Sunday Telegraph Fifth Book of Griddlers

Griddlers are an increasingly popular part of Pan's puzzle books list. Appearing weekly in the Sunday Telegraph, they are tests of skill and logic - finding patterns and pictures in a grid - that can easily become addictive. This fifth collection of Griddlers contains over 80 puzzles, including some completely new ones that have not appeared in the Sunday Telegraph. And as always, if frustration sets in, all the solutions are included at the back.

James Dalgety is one of the world's leading metagrobologists. For fifteen years he ran his own puzzle manufacturing company. He helped set up Bristol Exploratory as Britain's first hands-on science centre. He has also established PuzzleQuest, a permanent exhibition of large interactive puzzles at Techniquest in Cardiff, and he designs puzzles for toy companies, advertising promotions and interactive exhibitions. He lives in Honiton, Devon.