Ask HN: What are your favorite books on Unreal Engine?

Inspired by [this](https://news.ycombinator.com/item?id=30822339) Ask HN last month, what are your favorite books on 3D game design in Unreal Engine 5 or 4?

I'm especially interested in deep dives on UE's rendering pipeline, shaders and materials, and blueprint / C++ best design practices.

Most of the top search hits are from outfits like Packt Publishing and seem generally to be of poor quality, so I supplicate myself to the HN hive mind.