Which file did you modify to access the books like so? I've found a folder using process monitor that has some interesting files: C:\Users\username\Saved Games\Type Dreams\. Two files seem the most promising: playername_books.dat and agsave.999 (this might only contain the book sprites). But i still cant figure how to unlock the books. Also, I got locked out of my account because i forgot the password and tried everything in my might to find if the password was stored anywhere (no cigar). but, as luck would have it i found my password scribbled in a scrap notepad still in my drawer.
Viewing post in Help a brother, Rich!
Password can be found in plaintext in [name].dat files.
To try and force unlock everything, open [name]_books.dat in a hexeditor (like HxD), search and replace, "hex-values", replace 4900 with 4901, replace all, save.
I would recommend you do this on a new profile, because it might have some side-effects, like marking empty entries as "new" and erasing your legitimate progress.
It should work, but I haven't checked if there are no entries missing.