Just a reminder...
If you can't find it on amazon (because they don't WANT you to find it there), you might still be able to find what you're looking for at z-lib.org. (these are e-books only)
You can't get there on the regular internet.
You have to "go dark", with the Tor browser.
Copy and paste this into the Tor URL line:
zlibrary24tuxziyiyfr7zd46ytefdqbqd2axkmxm4o5374ptpc52fad.onion
You'll need to register -- use a throwaway email address, made up name, etc.
For the email address, create it at protonmail.com.
A basic account is free (also includes use of the free portion of proton VPN, if you care to use it).
Use the throwaway email to create your account at z-lib and log in.
Not complicated at all -- try it.