This is a rare book in the sense that exploitative or New Age accounts muddy the field and seem to leave nothing but skepticism as an option: but Radin is wise to these wrong approachs and actually succeeds in making a case for the existence of psi phenomena. The current dogmas of reductionism, while they set the baseline of skeptical inquiry, filter out a whole side of man. One problem is the way a scientific approach tend to reify into a set of crystallized concepts, e.g. 'esp', and these are defined as abstractions, which are then subject to misleading tests and/or fantastic claims. But the realms of these supposed phenomena don't follow the rules of standard definition. This is an important book because the current mythologies of the age of Big Science are provoking an immense reaction by those who simply won't submit to definition of man proposed. It is unrealistic.