I like how Asimov strings together series of stories, each of which could stand alone, into a fully coherent whole, and he does this as well as always in 'Foundation', sketching out a solid historical and cutural foundation for his universe. I think he did a better job of bringing his stories fully into four dimensional, polychromatic life in 'I, Robot' or 'Bicentennial Man', but 'Foundation' certainly has enough to it to make me want to read more.