I loved that book. One of the best books on cosmology/space-time/quantum-general relativity. Susskind's thought experiments are mind boggling, and he is a great writer, able to explain complicated physics in a clear and thoughtful manner.
Is this a book that someone with no background in the sciences involved can enjoy? Is it for the layman, or requires some knowledge of the facts involved to appreciate enough to read?
It's written in pretty easy way, you just must be interested in this stuff, then you'll enjoy it :)