I would have to say I read a lot of science fiction. I also read a lot of books related to music and most of all a lot of books with my name in the title, in the book or in the author's name. That's not all I read but that would be the top three I would say.
I've not had the time nor the patience to write a book. . .unless you count my collection of poetry which I have been writing for over three decades.
I have also anonymously contributed to a book about local theatre history back in PA and a book written by one of my old editors on the Daily Collegian newspaper (the Penn State main campus newspaper). I have no idea what genre the book was. I just found a portion of the book where the main character was standing in line somewhere and I contributed a romantic interlude flashback.