Thanks to my sister again for getting me started on the Harry Dresden series by Jim Butcher. She’d given me “Storm Front” last Christmas, but I hadn’t been able to start it until now. So after profusely thanking her, I’ve borrowed the next several from the library.
As you’d quickly learn (I think on the first page), Dresden is a professional wizard in Chicago. He works as a sometimes-consultant to the police on those “unexplainable” cases involving magic and non-mortal crime.
I’d suggest reading them in order since there are several story lines that carry over from book to book.