Nothing meaningful, unless for you it is.
I corrected some errors and maybe changed a few sentences here and there in the blog version. But I hope it is okay. Given that it is an unfinished book anyways.
(without corrections) [ODT – format]
Here is the document with the notes I wrote for the book and also some ideas which I didn’t use later or weren’t finished.
In case you want to see an explanation and some random stuff, then you should look into the final post with the letter X instead of a number.
[ODT – format]