A collection of Asimov's short stories, the second part being just as good.
'Nightfall' was widely held to be one of the best SF stories ever written. This was based on a conversation between Asimov and his editor Campbell about what would happen if mankind only saw the stars once in ten thousand years. Asimov conjured up a planet in a system of multiple suns which always make it bright, and supposed that some eclipse event might rarely make it dark enough to see the stars. But the regular collapse of all civilisation on this planet over the ages warns us that this may not be a happy occurrence.
Asimov was at his peak of short story writing at the time and combined the title story with others from magazines, which he contended were as good. However, they do not have the breadth of vision or universal appeal though they are each worth a read. Every reader will take away their own favourite.
This is suitable for anyone from young teens upwards, especially if they have lively minds.