Ludwig Wittgenstein - 1889 - 1951 - was an Austrian-British philosopher who taught at the University of Cambridge and is known as one of the most important philosophers of the 20th century. He worked in the areas of logic and the philosophy of mathematics, the mind and language. The majority of his writing was published after his death.
- Word Book
- Last Writings on the Philosophy of Psychology: The Inner and the Outer, 1949 - 1951, Volume 2
- Reasonable Logic: Ludwig Wittgenstein's Tractatus Logico-Philosophicus
- Ludwig Wittgenstein: Dictating Philosophy: To Francis Skinner - The Wittgenstein-Skinner Manuscripts
- The Big Typescript: Ts 213