Possible Duplicate:
List of intro TCS books for those who don’t know much about TCS
Im taking a course on Theoretical computer Science. and I use Sipser's Introduction to Theory of Computation
as my reference manual. However, many times I find myself lost in the proofs. Ive tried following Shai Simpson's online lectures ,but would prefer something more watered down and easier to understand. Im open to any pointers/strategies or resources.