The Last Tsar: The Life and Death of Nicholas II (1992) by Edvard Radzinsky. Great book by a talented writer who has a flair for the dramatic, and he’s got plenty to work with here with the Romanov clan, Rasputin, Lenin, Trotsky, scheming ballerinas, and a whole mess of murderous two-bit commies hungry for glory. Both informative and entertaining.
Can You Ever Forgive Me? (2008) by Lee Israel. Memoir of a writer who turned to a life of crime (literary forgery) after she hit a "rough patch" in her career. Quick read, good one-liners throughout, many of them in the guise of the dead writers she was impersonating (e.g. Dorothy Parker, Noel Coward, Louise Brooks, Katharine Hepburn).