Let me see, I have a couple in my library, each of which I've read more than once... The Fountainhead, Atlas Shrugged, Anthem, We the Living, Capitalism: The Unknown Ideal, The Romantic Manifesto, The Virtue of Selfishness, and then I also have The Ayn Rand Lexicon, which catalogs some of her thoughts on various ideas. Or perhaps I should go get my notes from various debates I've had with Objectivists over the years? Emails with some of her sycophants? The works of her critics, such as the brilliant and vastly superior Murray Rothbard? The abysmal and trite offerings of her "intellectual heir" Leonard Peikoff? Nathaniel Branden? Or maybe her economic idol Ludwig von Mises, whose work I've also read. Oh, maybe I should instead re-read some of the works of her literary inspirations: Dostoyevsky and Victor Hugo? Which do you recommend?