"Invisible Influence is a masterpiece in understanding the science of influence and how to take it from convincing to compelling. Kevin Hogan shows you in plain
Black magic. Telepathy. The Universal Mind. Such wonders are real, insists spiritualist Alexander Cannon in this 1933 tome, all manifestations of the invisible
SELLING THE INVISIBLE is a succinct and often entertaining look at the unique characteristics of services and their prospects, and how any service, from a home-