the age of reason gets a couple of mentions,is this sartres (sounds like it given parky's description of the cover--picassos's "weeping woman"),hope you read the others in the series "the reprieve and "iron in the soul".also "nausea" is a good rerad if into that sort of thing.try also camus "the outsider"
haruki murakami's "wind up bird chronicle" and "norwegian wood" are both quite leftfield but probably the best ones for anyone starting into murakami.
will selfs books are canny if you are struggling for a 3rd in a 3 for 2 type scenario.
not fiction but norman davies "the isles"(social and political history of the british isles)is a must read,any of antony beevors books,john simpsons are quite entertaining,and harry pearsons "the far corner" is the funniest football book ever,set up here aswell.