Trotsky: A Biography (Robert Service)
I continue to be fascinated by the Bolshevik Revolution, because in its success there are many lessons. Unbiased history and biography of the Bolsheviks is a relatively recent phenomenon; prior to 1991, a combination of lack of primary materials and philo-Communism among Western historians meant very few objective books were published. Since 1991, though, the balance has shifted, even if plenty of Communist-loving propaganda is still published by major historians, because the global Left has always, and continues to, fully support the goals and methods of Communism. They mostly just keep it a bit more quiet in public than they used to.