https://www.pcgamer.com/in-the-mood-for-light-reading-nvidia-is-writing-a-book-on-ray-tracing/

In a just a few more weeks, Nvidia can claim it wrote the book on ray tracing, or at least a book on the topic. Work has already begun, and Nvidia is planning to make a hardback version available mid-March at GDC and GTC. What's the point?

"Our main goal with this book is educating developers at all levels about important concepts and the state of the art in ray tracing, with an emphasis on real-time rendering," Nvidia explains.