"But it is not easy to read it if you are not a specialist." man, that is an understatement if i ever read one. hawking is almost impossible to follow.
i remember reading "nature of space and time" by hawking and penrose. while penrose's essays were coherent and readable, hawking's contributions were some of the most convoluted, difficult to follow, and abstruse writings i think i have ever run across. i think i pretty much lost all respect for hawking after reading that book, because i was expecting so much more from him. i truly got the feeling, inspired by feynman's remark that "if you can't explain it to a freshman, you don't understand it well enough yourself", that hawking perhaps doesn't understand what he is talking about either, and tries to cover it up with theoretical-babble...