Lehmann and Winer present a solid overview of the types of analysis that should go into good marketing planning. Where most marketing books cover a broad spectrum of topics, the authors zero in on the step-by-step process of a complete marketing analysis as the starting point for creating thorough marketing plans. The authors use two market segments to illustrate their points throughout the book, carrying a theme that builds on prior chapters that is more effective than a random assortment of examples.
I found myself wanting more details and concrete how-to in the quantitative analysis section. If that's what you're looking for, you should probably look further. Otherwise it's a great read!