Wow, the responses in this thread have been impressive, and revealed that there are some serious and learned chess players here, and more than a few wits. Oh, wait. It's a chess server. So "serious, learned and often witty" isn't a surprise.
But one of the most recent responses just reminded me that I have yet another great book to feel seriously guilty about not having actually "read" yet -- Fischer's 60! Maybe I should have started with that one (for the fifth time?), instead of making up my mind to tackle My System & Chess Praxis by Nimzowitsch. After all, Fischer (and Evans) certainly deserve getting some serious study time, chesswise.
I think
@kajalmaya mentioned "Simple Chess," too. Yet another really, really good possibility for a determined, thorough "reading."
Well, too late now THIS time I'm going to stick to my original plan and get it done. THIS time I'm not going to let a whim change my focus and make me change my quest, even though other really good chess books are now winking vigorously at me from the shelves.
Already in the first day of the newly attempted quest, I've found that going over Nimzowitsch slowly and carefully, playing a bit of "guess the move" (as a poster wisely mentioned) and then receiving the computer's wise counsel, is revealing lots of food for thought. And somebody much earlier suggested using a computer screen (in my case, ChessBase) instead of a hard board -- and yes, that seems to make things easier.
I will come out the other side of this quest (God willing), perhaps a year from now, and while I might not be any stronger when I do, at least I'll feel a bit less embarrassed when I look at the bookshelves, and I will have developed a bit more self-discipline.
Old dog? Meet new trick.