Book Bleg

OK, this is a bit of an odd request. But here it is. I need something to read, and since my alertness level is a little on the weak side these days, I need something easy on the brain cells. The ideal choice would be, say, a 10-part fiction series that’s basically beach reading. In other words, something that’s pretty light but will last me a long time. It doesn’t have to be quite Harry Potter level, but that’s the sort of thing to be thinking of.

Nonfiction that’s not too dense is fine as well. Any suggestions?