I've never brought one in this manner because I'm worried I'll get something I've already read. My local library does this though, and I always gravitate towards the blind date shelf when I can't decide what else I want to read.

The last time I did this I got a book I'd never heard of called Self Care by Leigh Stein, I got straight to reading without even looking at the synopsis. I really enjoyed it because it felt super current, literally like a story that could be playing out on the news and being debated on reddit. I probably never would have issued it otherwise. The time before I ended up with Truman by David McCullouch, I like biographies but I probably wouldn't have gravitated to this one because I've found I like reading about the founding fathers and later twentieth century when it comes to U.S history. I enjoyed this one more than I thought I would, and I'm eager to read more biographies by David McCullouch soon