For high-level math courses, the best I've seen is a reader written by the professor, combined with an optional 1000 page tome.
The reader goes with the lectures, and is focused on the actual material of the course. The reader, combined with your notes, basically covers the lectures. Meanwhile, if you need another take on the material, or some wider context, the 1000 page tome is always there. This works especially well if the reader points to equivalent chapters in the tome.
The reader goes with the lectures, and is focused on the actual material of the course. The reader, combined with your notes, basically covers the lectures. Meanwhile, if you need another take on the material, or some wider context, the 1000 page tome is always there. This works especially well if the reader points to equivalent chapters in the tome.