Quite good reading to stay up to date how to write proper C++ code instead of classical C with C++ compiler, given how the language is anyway unavoidable in many domains until they migrate to something else, mostly beyond our lifetimes.
Like LLVM and GCC contributions, GPGPU frameworks and Khronos standards, language runtimes,...
> Quite good reading to stay up to date how to write proper C++ code instead of classical C with C++ compiler,
This is good too: https://github.com/isocpp/CppCoreGuidelines
I also liked Scott Meyer's book "Effective Modern C++".