if you are not a retail guru, but if you're an executive involved with retail, fast moving consumer goods, shopper understanding, category management, trade promotions, and so on, you must read it. It's clear, ordered, easy to read, and best of all is edited by ACNielsen, wich is the global leader in FMCG information.
At the end of your reading you'll understand the importance of shoppers in the FMCG business, wich is the functionallity of decision trees, what's next beyond category management (trip management). Why is so important to understand shopper's behavior to achieve succesful exhibits and boost your sales.