About fiction books (obviously as said by brembo, the best by far beeing the LOTR) a marvellous one wich I adored and read at least twice when I was around 18, was Elric of Melnibone by Michael Moorcock. It is not the "bestseller" fantasy like Shannara or the other famous sagas, but it's for sure really nice! The hero is a bit different than your typical hero! Check it out if you like fantasy and want something different