An excellent and concise clarification of the genuine ideas of the two greatest revolutionaries of the 20th century. The book places the debates between the two into their historical context, showing how they always stood side by side on fundamental questions and how they in the decisive moment of the revolution they were in complete accord. In fact, it was oftentimes against Stalin and his followers, who would later try to draw an imaginary line between them, that Lenin and Trotsky had to defend the basic ideas of Marxism and explain the role of the revolutionary party to. As a result, the book also serves as a great introduction to the ideas of Internationalism, the theory of permanent revolution and the Russian revolution.