The Foundation series no doubt. If I have to choose one book I'd go with "Forward the Foundation", although not in the original 3, I just read it and totally loved it.
Issac Asimov All The Foundation .
The loss of Richard Dean Anderson has killed the show. It seems to be all about Daniel Jackson now and that really annoying woman which this kind love/hate stuff has been done to death.
I agree . Without Richard Dean Anderson is different but Claudia Black and Ben Bowder doing a good job . !