[majoe]

I still like the Effective Modern C++ books by Scott Meyers, although they are a few years old already.

The modern parts of C++ are alright (inelegant and cumbersome, but alright), but because the language has grown over the years and best practices changed, it's difficult to see, which parts are worth learning as a newcomer.

That's why I like the books, mentioned above. They give concrete Do's and Don'ts, explain some important concepts like move semantics and why and how best practices changed.

Keep in mind, that these books require some preliminary knowledge, but you should be fine, if you learn the basic stuff from an online tutorial before going through the books.