Book excerpt: This second edition of Historical Dictionary of Russian and Soviet Intelligence is the only volume that lays out how Russian and Soviet intelligence works and how its operations have impacted Russian history. It covers Russian intelligence from the imperial period to the present focusing in greatest detail on Cold War espionage cases and the Putin-era intelligence community. This is done through a chronology, an introductory essay, appendixes, and an extensive bibliography. The dictionary section has over 600 cross-referenced entries on espionage techniques, categories of agents, crucial operations spies, defectors, moles, and double and triple agents. This book is an excellent access point for students, researchers, and anyone wanting to know more about the Russian Intelligence.