The author of this web-book, Christoph Schiller http://www.motionmountain.net/author.html http://www.arxiv.org/abs/gr-qc/9610066
has promoted it widely for many years in various web forums. I haven't seen recent versions, but back in 2001 I felt that Schiller's book is highly idiosyncratic, and it is probably not good idea for your first textbook to be idiosyncratic, since presumably you want to study a book which will ease your path to reading current research papers and arXiv eprints with understanding.
I'd suggest choosing instead one of the standard gtr textbooks, such as those compared at http://math.ucr.edu/home/baez/RelWWW/HTML/reading.html#gtrmoderntext [Broken] Spending fifty bucks or so for a good textbook is not unreasonable, I think, given the amount of time and energy you can expect to expend learning gtr.
Christoph Schiller is a fine physicist whose book project is going into its 17th year now. I think his work on relativity is just fine and is rich on illustrations. He has spent much work on this project and gives this book to anyone who wants it. A very admirable thing IMHO.
Schiller promoting his web-book?
At any rate it is not different from some individuals here on PF who constantly promote their website.
“I'd suggest choosing instead one of the standard gtr textbooks, such as those compared at http://math.ucr.edu/home/baez/RelWWW...#gtrmoderntext [Broken] Spending fifty bucks or so for a good textbook is not unreasonable, I think, given the amount of time and energy you can expect to expend learning gtr”
Hello Chris, the link you have posted does not work. Lurking around this forum has sparked up a new interest in Physics. I took some basic Physics courses in college, but this was long ago. The highest Math I took in college was Linear Algebra, and I did well. Would you please re-post the link? Would you be so kind as to recommend me a series (from introductory to advance) of Physics books? And my last request, what kind of Math textbooks will I need to go along with the Physics books (I’ve kept all my Math textbooks from 10 years ago)?