I went to the trouble to write a reasonably lengthy answer, and it was the first one after the initial question. It is annoying to do so for posters who it turns out don’t want to discuss the subject at hand. The OP could have commented on aspects of my post. Or asked for names of specific books that other posters referenced. Or asked posters who mentioned other threads to post those links. The poster did none of those things one would expect from a poster who is really asking for information.