C++
Learning
Start with the Tour of C++. It's 240 pages only and available free online.
Create some cool and creative coding project in C++
Move to C++ Primer
Libs
OpenFrameworks:
Cinder:
JUCE:
http://www.juce.com
https://github.com/vinniefalco/DSPFilters
https://github.com/micknoise/Maximilian
References
A Tour of C++
http://www.juce.com/learn/learning-c
http://c.learncodethehardway.org/book/
http://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines
https://www.ossblog.org/master-c-programming-with-open-source-books/
https://github.com/Bhupesh-V/30-seconds-of-cpp
GameDev.tv course supported by UE:
https://www.gamedev.tv/courses/675837/lectures/12154431