The GCHQ Puzzle Book And The GCHQ Puzzle Book II 2 Books Collection Set - Non Fiction - Paperback five book collection stylists and anyone drawn to

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The UK editions supplied match the ISBNs and cover images shown

The GCHQ Puzzle Book And The GCHQ Puzzle Book II 2 Books Collection Set - Non Fiction - Paperback five book collection stylists and anyone drawn toTitles in This Set The GCHQ Puzzle Book The GCHQ Puzzle Book II Details Condition: New Format: Paperback ISBN (Book 1): 9780718185541 ISBN (Book 2): 9780241365434 Publisher: Michael Joseph (Penguin) Age Range: Adult 12+ Overview This two book paperback set brings together The GCHQ Puzzle Book and its sequel The GCHQ Puzzle Book II, both compiled by the real codebreakers at Britain's intelligence agency, GCHQ. Packed with logic puzzles, ciphers,