DeMohrenschildt wrote that Oswald told him he had read Turgenev and other famous Russian authors. Marina's favorite writer was also Turgenev.
DeMohrenschildt: "Incidentally I never saw him interested in anything else except Russian books and magazines. He said he didn't want to forget the language - but it amazed me that he read such difficult writers like Gorki, Dostoevski, Gogol, Tolstoi and Turgenev - in Russian."
This account was from his very questionable manuscript "I'm a Patsy."
Here:
https://www.jfk-assassination.net/russ/jfkinfo4/jfk12/hscapatsy.htmRemember DeMohrenschildt testified that he viewed Oswald as a "semieducated hillbilly" that he had pity for. That's a completely different Oswald than the one he portrays in the above essay where he is "amazed" that Oswald read such sophisticated works.
GDM: "Well, he was not sophisticated, you see. He was a semieducated hillbilly... All his opinions were crude .. .'’ His mind was of a man with exceedingly poor background, who read rather advanced books, and did not even understand the words in them . .. So how can you take seriously a person like that? You just laugh at him. But there was always an element of pity I had, and my wife had, for him."
I'm sure Oswald read serious works - he thought he was an intellectual - but I don't think he had a clue as to what they were about. Recall what Thornley said when he tried discussing "1984" with Oswald? Oswald had no idea it was about the Soviet Union.
And from "Marina and Lee": "But her [Marina's] favorites were the novels of Turgenev, with their splendidly idealistic young women and their stories of life in the Russian countryside. These books stimulated her imagination and sharpened her perceptions, and that, in turn, increased her awareness that she was somehow different from her brother and sister, somehow different from her friends."