Crary, Alice, and Rupert Read, eds. The New Wittgenstein. London: Routledge, 2000

Diamond, Cora. "Throwing Away the Ladder: How to Read the Tractatus," in The Realistic Spirit: Wittgenstein, Philosophy, and the Mind. Cambridge, MA: MIT Press, 1995

Hacker, P. M. S. Insight and Illusion: Themes in the Philosophy of Wittgenstein. Bristol: Thoemmes Press, 1989

Mounce, H. O. Wittgenstein's Tractatus: An Introduction. Chicago: University of Chicago Press, 1989

Pears, David. The False Prison: A Study of the Development of Wittgenstein's Philosophy, Volume One. Oxford: Clarendon Press, 1987

Wittgenstein, Ludwig. Notebooks 1914–1916, translated by G. E. M. Anscombe. Chicago: University of Chicago Press, 1979