lord of the rings....
again
recent titles include a mixture of fiction, scifi, fantasy, thriller, factual history(ww2), anthropology, classical greek:
mort (terry pratchet)
cyclops (clive cusslar)
east of the mountains (david gutterson)
the eagle has landed (jack higgins)
sniper one (dan mills)
the hogfather (terry pratchet)
elric of melnibone (michael moorcock)
ship of shadows (fritz leiber)
vixen 03 (clive cussler)
failsafe (eugine burdick & harvey wheeler)
armageddon (max hastings)
the naked island (Russell braddon)
the thin red line (james jones)
nightfall one (isac asimov)
revolt in 2100 (robert heinlein)
the worthing saga (orson scott card)
the ascent of man (jacob bronwnowski)
the oresteia (aeschylus)
acquisitions for the future:
cosmos (carl sagan)
alone in berlin (hans fadalla)
life and fate (vassily grossman)
the vanishing (also known as 'the golden egg') (tim krabbe)
when you don't watch tv you can read a lot of books

EDIT:
you cannot beat those second hand gems tucked away on the dusty shelves, with the alluring cover art and enticing synopses.