Hugh Seton-Watson 
Pattern of Communist Revolution [PDF ebook] 
An Historical Analysis

This book, first published in 1960, analyses Communism as an aggressive and revolutionary movement. It examines the factors which produce a successful Communist revolution, and which elements the Communists themselves contribute to the revolution. It also looks at the post-Stalin changes to Soviet politics, the events in Hungary in 1956, and the development of Communist influence in Middle Eastern and Latin American spheres.