Found in 2 comments on Hacker News
I'm not sure how C++ for DL is different from regular C++ so take my advice with a grain of salt.

I took a class under Bjarne Stroustrup and he highly recommended Tour of C++ [0] as the best way to learn modern C++ for someone who already has some programming experience. That and of course, Effective C++[1] by Scott Meyers.

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dman · 2018-01-17 · Original thread
Get this - If you are stuck at any point ask on /r/cpp, people there are very friendly and knowledgeable.

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