Well, the book is 350 pages and covers most of the main ground for location sound recording for film and TV. It includes some theory but the main strength is the practical information it has to offer. I have several books that claim to cover some of this ground, but this is the only book that really gets to grips with location sound practices and some of the real techniques. As a location sound recordist myself, I would agree with most of the book and confess to having learnt a few things. If you're a UK sound recordist then be aware that this book has a US perspective on standards and equipment (-18 dBFS alignment? SQN?). "Sound is half the experience" - a quote by George Lucas from the back cover of the book; take note Producers and Directors!