Like its companion _Robot Dreams_, this collection is in part an excuse to feature the haunting illustrations of Ralph McQuarrie and partly a well-chosen selection of the Good Doctor's short writings.
However, unlike _Robot Dreams_, this one really does concentrate on robots. It also includes a good chunk of Asimov's nonfiction on the subject -- and (unlike Heinlein) Asimov wrote very good nonfiction too.
Two things you should know before you buy this:
(1) It includes most of the contents of _I, Robot_, but not all -- and it also doesn't include the frame story (the interview with Susan Calvin). So even if you buy this, you'll still have to get _I, Robot_ if you don't already have it.
(2) It includes the robot stories that _aren't_ part of _I, Robot_ -- among them the very best Susan Calvin story, "Galley Slave".
At any rate, no Asimov fan will want to be without this one.