Awesome Books (in Markdown) - Any Missing?

[Gerald Bauer]

Hello,

   I've started (yet another) awesome collection on GitHub. What's news?

   The awesome-books page [1] collects books handwritten (or
auto-build) in Markdown. Examples include:

   - You Don't Know JS (Book Series)
   - PHP: The Right Way
   - Learn you an Agda (and Achieve Enlightenment)
   - and others

   If any goodies are missing let us know. Might be great to get some
classics (in the public domain) e.g. Shakespeare, Dickens and friends.

  Cheers.

[1] https://github.com/writekit/awesome-books

PS: To get listed the books must be free (that is, the Markdown source
must be open source).