After reading "A tour of C++," I can read: the same book twice again, the same book in Chinese, a book on the R language, or an English-German dictionary.

I know it’s not personalized since I didn’t create an account but it’s still a bit disappointing.

The privacy policy was a fun read though. They say that "one of our main priorities is the privacy of our visitors" and then give a huge list of the personal information that is collected. It’s not very private too.