Gchq - The Gchq Puzzle Book Perfect For Anyone Who Likes A Good Headscratcher - Paperback Miscellaneous Items Barcode: 9780521683470

Barcode: 9780521683470

Barcode: 5060135763398

Drawings: 50 B&W

Supplementing the original classic text is an interview between Henry Jenkins and Suzanne Scott in which Jenkins reflects upon changes in the field since the original release of Textual Poachers

Gchq - The Gchq Puzzle Book Perfect For Anyone Who Likes A Good Headscratcher - Paperback Miscellaneous Items Barcode: 9780521683470Binding: Paperback Description: Would GCHQ recruit you? Pit your wits against the people who cracked Enigma in the official puzzle book from Britain's top secret intelligence and security organisation Over the years their codebreakers have helped keep our country safe from the Bletchley Park breakthroughs of WWII to the modern day threat of cyber attack. So it comes as no surprise that even in their time off the staff at GCHQ love a good puzzle.