Gwern has a tutorial like this, which you can find here. This is just a redundant guide so more will see it.
So you want some ebook and you don’t want to pay $$$? There are some options, in order of what to try first.
- Library Genesis (LibGen)
- Internet Archive
- Google it
Library Genesis (LibGen)
I already have a guide how to use this site in detail here. TL;DR, go to the URL that works for you e.g., http://220.127.116.11/ or http://libgen.rs/. They change them once in a while due to legal attacks.
It has a terrible search engine here, so it is generally better to use Google’s advanced search, like this:
The first result is the book of interest. Sometimes, they are protected, and you have to burrow them:
If the above fails, you can sometimes get lucky that Google can find you a copy. Most of the time, you will be disappointed and get various book reviews and scam attempts. It’s the same approach as above, except search for filetype:
This gave me:
These are all book reviews or related works, which may be of interest, but weren’t the book we were looking for.