What is your favorite book by Issac Asimov?
I really liked I Robot
What was it about this science fiction book that made you really interested in it?
It was the first robot novel that I ever read.  It made me a fan of his books and his three laws of robotics.  Did any other authors borrow his 3 laws?
I have not come across any other authors other than Asimov with the three laws. Have you?
I think there was an author that added to, or finished, his robot series but I don't recall for sure.  Do you know what it might have been?
There are two names i have come across. Roger MacBride Allen and Jack Williamson.
What about Robert Silverberg? Did he coauthor any with Asimov on any Robot novels. I seem to recall he did.
The only think i have come across is Nightfall.
What other authors are similar to assimov?
Maybe another similar author to Asimov could be Frederik Pohl?
Yes.  Maybe Heinlein or Bradbury as well.  Do you recall the plot of Childhoods End by Assimov?