Well, CLOS may be state of the art in very fine designed,exhaustively redefinable, roll-your-own aspect oriented programming, and the most exhaustive object ori

Well, CLOS may be state of the art in very fine designed,exhaustively redefinable, roll-your-own aspect oriented programming, and the most exhaustive object oriented paradigm for the most fluid pragmatic language ever. But I doubt you'll find useful sources for programming style searching for it. If you are implementing an object-oriented paradigm for your programming language, it's a very recommendable source to discover what can possibly be done with OOP.