Thank you. A nice introduction to Opposition. Opposition is one of the most important techniques to learn for the endgame. Every chess player should strive to learn it like the back of their hand! (It's not difficult once you get the hang of it).
The following books do a good job covering the Opposition in detail...
Silman's Complete Endgame Course: From Beginner To Master by Jeremy Silman
Endgame Workshop: Principles for the Practical Player by Bruce Pandolfini
I have written an article about "the opposition in chess". Sure that it can be basic for many of you but can help chess players who are starting. I share it with you. I hope you like it
Share it if you see it interesting!
https://www.albertochueca.com/blog/the-opposition-in-chess-king-and-pawn-vs-king/