A tour of C++ (3rd edition)
by Bjarne Stroustrup

The "tour" is a quick (254 pages + index, historical information, etc.) tutorial overview of all of standard C++ (language and standard library) at a moderately high level for people who already know C++ or at least are experienced programmers. It covers C++20 plus a few likely features of C++23.

https://www.stroustrup.com/tour3.html