As someone who works in pricing, a book on what constitutes 'fair' value got my immediate attention. The main message is that there is no such thing in absolute terms. What is considered fair will depend on the context, and this context can be manipulated to increase the perception of fairness. While the book does contain some ideas you could implement, it is not a pricing handbook.
The book gives an overview of the field of behavioural economics in so far as it relates to pricing/valuation. If you've read a bit on the work of Kahneman, Tversky, Ariely, Thaler, ... you'll already be familiar with most of its contents. The book's merit lies in the selection it makes within this broad area of knowledge and the author's own observations.
It is set up as a series of short chapters that deal with a specific concept (priming, anchoring, ...), a specific application (99 cent pricing, Free!, ...) or an exploration of influencing factors (intelligence, race, gender, ...).
It's written in an entertaining anecdotal style that doesn't require any previous knowledge on the part of the reader. Anyone interested in understanding how humans can be influenced to find certain prices more attractive will benefit from reading this book. Once you've read this book you'll never look at a restaurant menu in the same way again.