The book 2001: 2001: A Space Odyssey was the same basic story as the movie just so much more involved.
Sure. the book is of of the oldest written book. the author really did a great job in making it work. 
Arthur C. Clark was a master of his craft. He has written dozens of novels and countless novellas
Clark really a mind blowing movies.  and The major screen play was Kubrick who spent years meticulously. 
Yes, Stanly Kubrick's work on the movie was also revolutionary. Him and Clark worked closly together on the movie
that's because they both love and have the same passion. that their lifelong engagement and they've been preparing for it.
I definetly agree with that statement. They were both giants in their fields
Kubrick was a visual and aural inspirations and has more realistic portray. 
Yes, Kubrick's 2001 was a master piece and ahead of its time for visual effects.