Widely regarded as one of the most influential philosophical works of the twentieth century, Ludwig Wittgenstein's Tractatus Logico-Philosophicus is a succinct yet wide-ranging exploration of language and logic, science and mysticism, which has inspired generations of thinkers, artists and poets. In a series of short, bold statements, Wittgenstein seeks to define the limits of language, its relation to logic, its power and its inherent failings. Originally published in the early 1920s, it is the only book-length work the renowned philosopher published in his lifetime. In this thrilling new translation, Alexander Booth displays an extraordinary sensitivity to the subtle influence on Wittgenstein's gemlike prose - at once specialist and, often, remarkably plain-spoken - of his background in mechanical engineering, while highlighting the underlying poetry of this seminal text.