thank you for this; the very first time i am hearing this (reading the overviews of high level books), and now it makes sense, but I did not do this as I was st

thank you for this; the very first time i am hearing this (reading the overviews of high level books), and now it makes sense, but I did not do this as I was studying, nor was I told to, by my profs! Maybe this needs a seperate set of resources to be maintained, say we read a book, it should have resources to suggest higher level texts that would be helpful for this review.