Many great books are already enumerated here.
If I am not wrong, nobody mentioned Roadside picnic yet.
Also liked Memoirs Found in a Bathtub by S. Lem.
If I am not wrong, nobody mentioned Roadside picnic yet.
Also liked Memoirs Found in a Bathtub by S. Lem.
Roadside Picnic by Arkady and Boris Strugatsky. A philosphical science fiction book on the theme of aliens visiting earth which also influenced the game S.T.A.L.K.E.R.