How much knowledge of C++ is required to use Unreal Engine 4? - Quora
Amazon.com: Learning C++ by Building Games with Unreal Engine 4: A beginner's guide to learning 3D game development with C++ and UE4, 2nd Edition: 9781788476249: Volin, Sharan: Books
Epic Games Launches Unreal Engine Online Learning Platform - Variety
Learn Unreal Engine (Top 8 Unreal Engine Tutorials for Beginners) | by Hackr.io | Hackr.io: Find the best online programming courses & tutorials | Medium
UE4: 16 Principles - How to Start Learning Unreal Engine 4