The Communist Manifesto
This book is essential for anyone seeking to understand the history of the 19th and 20th centuries. Comprehending the motives and actions of many of its leading figures is impossible unless one has read this key text. 'The Communist Manifesto' left its mark upon the souls of leaders and rebels alike and shaped the deeds of whole nations for the greater part of 100 years. It could also be said to have led indirectly to the violent death of hundreds of millions of people.