Hey, expensive book!

 

I once put a free version of an earlier draft of this book online. The non-free version should be published on February 15th. 

The free version is still available on academia.edu, since someone copied it and has it on their page. But it contains mistakes that are absent from the new version, which also has a better commentary/guide to the secondary literature. I removed the worst of the mistakes from the translation on tractatusblog.blogspot.com, but it's still pretty different from the one that is about to be published. So the expensive version is a lot better, I think. Hopefully there will be a cheaper paperback version some time.