I cannot agree with many of the comments in earlier reviews of this book. To begin, the intended audience remains unclear. There is insufficient mathematics to get much of a feel for the topic and frequently the mathematical ideas which do appear fall from the sky with little or no warning. Even more troubling is that these concepts, crucial for any real understanding, are often left half done. This must leave many mathematically competent readers nonplussed and leave the mathematically challenged simply out in left field.
There are better, more modern, books out there for the technically inclined. This books is not even close to being "the best physics book ever".
Look at a library copy before buying.