“As a leader in social science research on space and interactions, Janning is the ideal guide to help designers better understand the value of sociology in the work they do. Janning is intellectually, disciplinarily, and methodologically promiscuous in ways that make this book an incredible and one-of-a-kind resource. With accessible and engaging prose, I imagine this how-to will make amateur sociologists out of　a collection of designers to the benefit of all the rest of us who engage and interact with their decisions and designs.”