This is said in the rules. If you go to the 100% category, between the times and the categories there is a box "show rules" if you click on it you will be redirected to the game rules, which follow over every category. On top you can switch it to "category rules" which tell you specifically to the category what needs to be done.

Cheers!

Is the use of an Auto-clicker forbidden, to read the book? The rules don't state anything and I can't bind my left click to scroll wheel, but I still wanted to be sure.

As per rules: "The timer ends when the Credits Initially Load-Up.". When I submitted my time I took the first frame where I could see the Load-Up of the Credits as my end time.