Health and fitness. Law and society. Comic books.
You. And Goldberg.
Whatever sounds good. Naughty by Nature, 2pac, Biggie, INVID, Blackstreet, Kanye, Journey, Kamelot, ACDC, Metallica, Saves the Day, Get Up Kids, Jimmy Eat World, Unwritten Law, etc.
When things explode and people die, all is well and good.
State of the World series, Captain America, Relativity: The Special and the General Theory, Cool Hand Luke, Modern Encyclopedia of Body Building, Rock Iron Steel.