This was actually the category on the list that I really didn't care for, not because the book I ended up reading was terrible or anything, but because I never do this. I'm not one of those people who randomly chooses a book based solely on its cover. Between the books people have recommended to me, books that were talked about in articles I've read, and new books by authors I like, I've always had more than enough books on my to-read list. So this was something new-ish for me. (I think I used to do this a lot when I was in elementary school - mostly books that had horses on the cover - but never since then.)
The basic premise for the book is this: A coffee shop owner ends up in the middle of a murder investigation when a girl turns up dead in Central Park. Toss in a dash of magical African coffee beans that give the drinker predictive visions, relationship drama galore, and a weird private club scene, and you've got the recipe for a decently interesting and rather enjoyable read. It was nothing spectacular, but it definitely kept my attention, and was an interesting twist on your typical amateur sleuth mystery novel. I don't know that I'd go around recommending it to most people, but if this is a genre you enjoy, you'll probably like this book. I honestly picked it up solely because I enjoy coffee shop AUs in fanfiction, and it exceeded my (admittedly low) expectations.