There a lot of books on breaking into the game industry so why would you buy this one? Hell, the overall gist is the same where ever you look - online, books, here, etc. 1) Build a folio, 2) Take any entry level job you can in the industry and be prepared to work your way up 3) if you can, try to meet people in the industry already.
If you want more indepth information than that however, this book is for you.
1) Everything is clearly broken down into sections very cleanly. Nice index and appendix makes it easy to reference.
2) Covers every possible angle - whether you're young, a college graduate or already working in another industry and deals with your strengths and weaknesses
3) Well written and substantiated by interviews with industry professionals (from game designers to game industry job recruiters)
No words are wasted in this. Every word holds some meaning. I was suprised at the breakdown on minority groups, different ethnic groups and gender issues in the gaming industry. I felt this chapter alone (whilst not necessarily relevant to me) increased it's target audience substantially by tackling a lot of issues that not a lot of authors have considered.
A lot of other books out there are a collection of interviews with various game developer professionals and often their answers are disjointed and do not answer the question directly, if at all. This does not make these books any "less" valuable, only a little bit harder to find the information you might be looking for.
If you want a nice, clean, crisp and concise book on breaking into the game industry, this is the book for you. My only gripe about this book was that I felt it was rather short (largely personal perception, I understand that). That said, it did cover everything you could possibly think of (short of building your own game company, but that's a topic for another book I think) so do bear that in mind, hence my rating.