Co-authored in a brilliant partnership by Christopher Andrew and the renegade Soviet archivist himself ... This is a truly global exposé of major KGB penetrations throughout the Western world.
- The Times

This tale of malevolent spymasters, intricate tradecraft and cold-eyed betrayal reads like a cold war novel.
- Time

Sensational ... the most informed and detailed study of Soviet subversive intrigues worldwide.
- Spectator

The most comprehensive addition to the subject ever published.
- Sunday Telegraph