In the past few years my reading goals have just been a specific number of books. This year I'd like to try a different sort of challenge - one that maybe encourages a little more diversity in my reading. For example, I thought I'd include at least 3 classics, at least 2 sci-fi, at least 5 written by international authors, etc.

Has anyone done something similar, or have suggestions for different categories I could include? (Could be based on anything - not necessarily just genre.)