Asimov is a legendary writer and nothing more iconic than the foundation series to hold down the fort with all the classic science fiction novels. Foundation has inspired several science fiction movies and books that followed.
Asimov has an uncanny talent of stitching. He can create a story direct more direct than other authors and create enough (almost) short stories to stitch them together. Where other authors paint the picture piece by piece and the story develops into a larger piece, Asimov is more direct in painting the larger picture first and then slowly filling in the narrative pieces. Foundation is a great example of that kind of writing. The story starts off with a arc that you know is going to last a thousand years with a premise anchored in believable science fiction.
Foundation is a great story of human beings inhabiting other parts of the galaxy where we have conquered the stars but somehow still kept our humanity. This book helps paint the picture of what political boundaries may look like in the future if that future is ever realized. This is a must read for any sciences fiction fan.