Good music (both live and canned), big engines, PVC, black leather, past times
Anyone
Elvis, Damned, Hanoi Rocks, The Cramps, Judas Priest, Zeppelin, Janis Joplin, Motörhead, Rolling Stones, The Who, Hawkwind, Hendrix, Bowie, Pistols, Queen, New York Dolls, Roky Erickson, Miles Davis, Nick Cave, Johnny Cash, Captain Beefheart, Leonard Cohen, Thin Lizzy, Black Sabbath, Celtic Frost, Cathedral, Doors, Misfits, Killing Joke, Stooges, Stray Cats, Gene Vincent, Eddie Cochran, Johnny Burnette... and any other good punk, rock, pop, metal, goth, ska, jazz, industrial, country, fifties, surf, garage and psychedelic stuff from 1950's to 2000's!
Old sci-fi/horror and western.
Nothing much... good old TV-series.
Lovecraft, Waltari, Poe; Crowley, LaVey and other occult/esoteric stuff, plus Disney-comics, Tex Willer... and repair manuals in a garage.
Far too many to mention anyone.