A Designer's Research Manual

Looks like a must have, but I'm cheap—so let me know if you've read it. From Amazon... Doing research can make all the difference between great and good design...designers are able to bring something to the table that reflects a commercial value for the client beyond a well-crafted logo or brochure...research is the basis of all good design work...This book provides a comprehensive manual on what design research is, why, how to research, and how to apply it to design...share common vernacular with clients...The ability to execute effective research methods is as important to a career in graphic design as the ability to build a grid or layout a page...Understanding the needs of the client and the client’ market are essential components of creating value.