Confidence levels, 1-tailed, 2-tailed tests and the application of these concepts in real world marketing situations can be quite confusing. This book once again came through with clearly explained examples and scenarios.
A second critical factor to look for - once you've gotten through all the introductory books - is finding concrete info on how-to, best practices providing significant content and knowledge. This is the true value-add from the masters: learning is incremental and there must be true takeaways to get the 5 stars.
This said, the authors have made an extremely broad, detailed and well spun story out of a subject matter that can be to say the least, challenging... Moreover, the disciplines of customer analysis, database management & modeling, data mining, statistical analysis, marketing planning are all the focus of reengineering by many of today's major businesses.
Consequently, this book leads nicely and rather naturally into a major subject of the day for many IT & marketeers -- Analytical CRM. As such it is a must read for anyone interested in understanding how A-CRM works in many companies practicing DBM today.
A great next step would be to go from the marketing-IT function(-ing) to the broader enterprise, long-term (relational) infrastructure & practices preached by CRM. Show how the DBM process evolves in to and is transformed by meeting Customer Mgmt strategies. How would DBM work in a enterprise integration, near/real-time, customer interaction CRM initiative?
Finally, as an aside, in reviewing MANY course syllabi across the world in DM/DBM, I've OFTEN found this book as the course text if not mandatory-suggested reading.
I agree -- for all & anyone wanting a good complement to Shepard's seminal work - you can't do any better.
Buy it ! Good reading...
In OPTIMAL DATABASE MARKETING, you get a wealth of material on two aspects of the process - for the price of one. Co-author Ron Drozdenko does a great job defining concepts and detailing potential objectives when building files. His coverage of technical specifications and issues is particularly useful.
As for the subsequent chapters: I don't think there has ever been a book written which covers database modeling, and statistical techniques germane to direct marketing, as comprehensively and clearly. Co-author Perry Drake manages to leave no stone unturned and yet convey knowledge in a style that's both understandable and easy to follow. This part of the book is worth the cost alone.