"e;The Gruen Maze - Designing buildings to make you lose track of time and money"e; investigates the "e;Gruen Effect"e; (or Gruen Transfer). Named after architect Victor Gruen, the father of the modern shopping mall, it describes the state of psychological disorientation that occurs when you enter a windowless, climate-controlled environment. Retail psychologist Victor Mall details the design tricks: No clocks, confusing layouts, soft lighting, and circulating paths. The goal is to make the customer forget their original mission (buying socks) and drift into an impulse-buying trance. Ironically, Victor Gruen hated what his invention became; he wanted to create community centers, not consumer traps. "e;The Gruen Maze"e; teaches entrepreneurs and consumers about the architecture of persuasion. It reveals why IKEA forces you to walk through the showroom and why casinos have no windows manipulating space to manipulate behavior.