After completing the Foundation series of novels by Asimov, I planned to read the Robot series.
When placing my order online, I found that some novels and stories are included in others. (For example, Naked Sun is present in The Rest of the Robots, and there is I, Robot and Complete Robots which have similar stories.)
Please help me how to select the books. (Are the Naked Sun and Caves of Steel in The Rest of the Robots completely the same as individual copy?) (Which is the complete one without any missing stories - I, Robot or Complete Robots or the The Rest of the Robots?)
What is the minimal set of books that contains a complete set of stories with minimal duplication?