Leon Trotsky, after exiled from the state he helped to create, became an active criticizer and an opponent of Stalin's Russia. In his analysis he described the Soviet Union as a "degenerated worker's state", that would either overthrow Stalin and get back to the road of Socialism, or fall apart.
The Revolution Betrayed is a decent critique from the left, concerning Stalinist Russia, and a good primary source. Trotsky writes in a simple and easy to read manner, using numbers and data to prove his point of view.
What Trotsky forgets to mention, however, is how he helped to create an one-party state that gave no civil liberties and human rights to its people, that he played a central role in defending the dictatorship of a minority party, and that he actively supported a regime that instituted a police state, abolished a democratically elected Constituent Assembly, promoted economic policies that resulted to famine and economic disaster, created concentration camps that were ran by slave labor, used torture and established totalitarianism, under the guidance of Lenin.
Stalin's rise to power was not an accident, but a consequence of a system of government that lacked separation of powers, allowing an individual to rise to the level of a dictator. A system that Lenin established, and Trotsky supported.
With the Soviet Archives open since 1991, the history of the Russian Revolution and the Soviet Union can finally be revealed without speculation and propaganda. It is simply a matter of facts that the Soviet Union did not suddenly become bureaucratic and dictatorial under Stalin, but in reality it started to take its form under Lenin and Trotsky.
It is therefore, in my opinion, quite an irony that Trotsky is preaching against what in actuality he helped to create.
I give this book 3 stars for it is a good edition of a book that is now of historical importance. I do not give it a higher rating because of the background of the writer and the effect that this has on his own arguments.
It can also be found on the internet for free.