I don't know how Adams manages to embed such laughers in the midst of such prosaic, straightforward prose, but he does and, from the way he weaves it into the story, I think he must have spent a lot of time studying quantum mechanics. He would have to know the subject well in order to deal with it in such a casual manner. Within these pages you will find some of the most convoluted sentence construction you've ever come across, but all of the examples thereof, despite a raised eyebrow and a jaundiced shake of the head, would get by your English comp teacher. The collection contains all five volumes of the trilogy, and a short story. As far as I know, this encompasses the entirety of Adams' Hitchhikers universe.
Really enjoyed. He adds lots of crazy, seemingly unrelevant details that come into play later or just as random, funny tangents. If you don't begin to enjoy the ironic and cynical humor in the first book then I would pass on the rest as they just get a more and more weird.
This book was only ok to me, but hey, they made a movie out of it!