Ludwig Wittgenstein's 'Tractatus Logico-Philosophicus' is one of the most important books of the twentieth century. It influenced philosophers and artists alike and continues to fascinate readers today. Alfred Nordmann's introduction considers both the philosophical and the literary aspects of the Tractatus and demonstrates how they are related. It also reveals how the work fits into Wittgenstein's philosophical development and the tradition of analytic philosophy, arguing strongly for the vigor and significance of that tradition.