That works for me with nonfiction books that I'm actively or casually studying. Not for novels though, and if I'm reading a few nonfiction books then start a (good) novel, all the nonfiction takes a backseat until I'm finished.
So I tend to cycle - a good novel, or two, followed by some time with everything fictional removed from my ereader.
This also depends on my personal and work life - fiction is usually much less effort than nonfiction, so when work or personal life gets busy, I find some good novels to enjoy, then when things calm down I'll go back to cycling between several nonfiction books.
Things don't always sync up perfectly of course - the trick is to avoid huge multi-book series, otherwise I'll end up reading them far into the time when I'd be better served by learning something new.
So I tend to cycle - a good novel, or two, followed by some time with everything fictional removed from my ereader.
This also depends on my personal and work life - fiction is usually much less effort than nonfiction, so when work or personal life gets busy, I find some good novels to enjoy, then when things calm down I'll go back to cycling between several nonfiction books.
Things don't always sync up perfectly of course - the trick is to avoid huge multi-book series, otherwise I'll end up reading them far into the time when I'd be better served by learning something new.