Hardcover, 392 pages
English language
Published July 31, 1987 by Viking Adult.
Written by Peter Wright, former MI5 officer and Assistant Director, and co-author Paul Greengrass. It was published first in Australia. Its allegations proved scandalous on publication, but more so because the British Government attempted to ban it, ensuring its profit and notoriety. en.wikipedia.org/wiki/Spycatcher
The definitional work on MI5 by a man who should know. The only book that even comes close to it in terms of authenticity is Marchetti's CIA and the Cult of Intelligence.
