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Telegraph: All New Codewords Volume 7: A cracking collection of over 200 puzzles to challenge your logic and vocabulary Telegraph Media Group Ltd Hamlyn

The Mammoth Book of Codeword Puzzles: Crack the code and solve the puzzle Puzzle Press Robinson

Good Relations: Cracking the code of how to get on better Janet Reibstein Green Tree

Riddle of the Labyrinth: The Quest to Crack an Ancient Code and the Uncovering of a Lost Civilisation Margalit Fox Profile Books Ltd

Cracking the Egyptian Code: The Revolutionary Life of Jean-François Champollion Andrew Robinson Thames & Hudson Ltd

The Times Codeword 4: 150 cracking logic puzzles (The Times Puzzle Books) The Times Mind Games Times Books