The Bolshevik Myth is definitely a recommended reading to learn about the Russian revolution.
Along with Emma Goldman, he arrived as an exile of the US, full of hope, but as he began to have the contact with the Russian people, he learned about the harsh reality of the ration not being evenly distributed and the Cheka enforcing privileges over the people.
In the end, he grew disillusioned with the revolution, especially after the Kronstadt rebellion, when Trotsky himself led the Red Army to kill anarchist sailors and workers.
It also has down to earth accounts of meetings with Lenin, Chicherin, and lower class people. Very refreshing for me among the proliferate grand narrative style works about this history.