Tractatus Logico-Philosophicus (Version 2)
The Tractatus Logico-Philosophicus is the only book published by Ludwig Wittgenstein. Any summary would frankly do the work an injustice - the interested reader is directed to Wittgenstein's preface and to the introduction of Wittgenstein's teacher, Bertrand Russell (1872-1970) - upon these no author could measurably improve. - (Summary by Landon D. C. Elkind)
Chapters
From LibriVox, read by volunteers and in the public domain. LibriVox page (opens librivox.org), the text (opens people.umass.edu), all files on the Internet Archive (opens archive.org).