colossuscover
COLOSSUS Bletchley Park’s Greatest Secret

The previously untold story of how Bletchley Park’s most brilliant codebreakers cracked Hitler’s cipher machine and invented the electronic computer

‘Masterly’ - Donald Michie, former Bletchley Park codebreaker and user of Colossus
- Spectator

‘The pre-eminent account’ - Professor Richard J Aldrich, author of
GCHQ

AS FEATURED IN RECENT BBC2 ‘TIMEWATCH’ DOCUMENTARY:
CODEBREAKERS: BLETCHLEY PARK’S LOST HEROES


InsideRoom40cover
INSIDE ROOM 40 The Codebreakers of World War 1

A vibrant account of British codebreaking operations in the First World War that will change our view of how the war was fought and won.

‘A comprehensive view of British World War I codebreaking’ - Chris Christensen -
Cryptologia

‘A revelation’ - Radio Society of Great Britain

As featured in recent BBC Radio 4 ‘Document’ programme on the role of Room 40’s intercept intelligence in the 1916 Easter Rising in Dublin


trojan horsescover
TROJAN HORSES & NATIONAL CHAMPIONS:
A History of the European Computing & Telecommunications Industry

The dramatic rise and fall of the European computer industry

‘IT Book of the Year’ 1997


The ROCK TRAILS series of hillwalker’s guides to the geology & scenery

RTSHighlandscoverRTPeakcoverRTSnowdoniacoverRTLakelandcover

ROCK TRAILS SCOTTISH HIGHLANDS
Newly published October 2012
’The latest in the Rock Trails series covering the classic areas of the Scottish Highlands. Containing 18 well described walks - this is a real MUST for anyone venturing out in the area’ - Geosupplies

ROCK TRAILS PEAK DISTRICT

‘The best Peak District guidebook so far produced’ - Down to Earth Magazine

ROCK TRAILS SNOWDONIA

‘A cracking little book’ - Mountain Leader Training England News

ROCK TRAILS LAKELAND

‘Others have dealt with the geology but few can have described it with such enthusiasm and clarity’ - Cumberland News



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Site last updated 22nd January 2013