This little book includes the basics that you would expect from a pocket phrasebook and also includes a two-way dictionary which may come in handy. This latter feature is an addition to the previous edition and it adds considerably to the heft of the book. It is pretty much what you would expect from a phrasebook with the requisite inclusion of the counting system (with pictures of the hand-signs which is helpful), useful expressions, and help getting around. It also includes both pinyin and simplified Chinese characters which means that if you cannot pronounce the tones correctly (you won't!) you can show it to someone. Be warned, I have met taxi drivers who cannot read Chinese.
A major caveat is that most Chinese do not speak Mandarin but a local dialect. They mention this in the introduction but it could be stronger. Even in the large cities there are some who do not speak Mandarin and although you may be able to make yourself understood, you will not understand them!
There are a few problems with the book, beginning with several typographical errors and exclusions. This seems troublesome when you may be relying on it to get you out of a jam. Secondly, this edition includes a list of profanity with the caveat that if "you hear these words you should be on your way." Users of this book will not know enough Mandarin to recognise what they are hearing and it seems an invitation for assault to consider using them yourself.
This book is excellent for those who are being tourists in Beijing or Shanghai for a few days but you will want to consider something more substantial if journeying around the country without a guide. If in doubt look for students, inevitably you will meet some who have studied English and are proficient enough to help you.