Beej's guide is great and still very relevant today (at least if you're programming in C). Are there any equivalent documentation/tutorials for other domains? A

Beej's guide is great and still very relevant today (at least if you're programming in C). Are there any equivalent documentation/tutorials for other domains? An equivalent for machine learning would be great, although part of what makes Beej's guide timeless is that a lot of the underlying concepts and syscalls have been static for decades.