Art Garfunkel famously keeps track of the books he has read since 1968. As of writing this, the count is 1327 (he does not add a review). I thought I could do something similar but I am adding short reviews of books as I read them, and I rake my brain over what I read over the last decades. This is, evidently, a work-in-progress: there are 467 reviews so far. Titles marked with a * are particular favorites.
Perry Anderson: Passages From Antiquity To Feudalism *
When I read this, I understood what a Marxist form of history writing could and should be (notwithstanding that you can argue specific points).