If someone knows better introduction to raytracing please let me know. From time to time I check for new releases but this book stays my favourite one.

It starts with the definitions of radiometric quantities, then presents the rendering equation and the rest of the book is dedicated to raytracing technique for solving this equation.

Really enjoyed every bit of it. It gave me a good grasp of the fundamentals and reinforced the concepts that I learned elsewhere (umpteen number of blogs, papers, tutorials, similar courses).

Particularly, I like the way complex concepts like Monte Carlo, Metropolis, Sampling methods, fundamental Radiometric and Photometric quantities are explained; These helped to get good intuitions.

Pseudocode have also been of much help; I referenced it while writing code. So, I highly recommend this book as a second book in Global Illumination.