WAY too many to list, but one of my favorite genres is older crime fiction. Earle Stanley Gardner, Micky Spillane, Raymond Chandler, Daschiell Hammett...for the US guys. Everything ever written by F.Scott Fitzgerald. Some, maybe most Hemingway. Ayn Rand, both her fiction and non-fiction. P.G Wodehouse, John Mortimer, Daniel Silva, John Connolly, Michael Connelly, James Ellroy, Ian Rankin, John le Carre... Science and SF: Carl Sagan, Stephen Hawking, Ray Kurzweil, Larry Niven, Keith Laumer... Best race-car prep books on the planet: Carroll Smith Vehicle technical: Sir Harry Ricardo, Michael Costin, Len Terry, William Milliken, Joseph Katz...