An Introduction to Parapsychology is an up-to-date and authoritative account of the field by two important contributors. It may very well be the most popular introductory text to parapsychology (in its 5th edition, a record that is probably unrivaled in recent parapsychology books). It is a thorough, balanced and thoutful coverage of parapsychology history, research, and critiques. The last chapter, an evaluation of parapsychology as science, is one of my favorite ones, as the authors bring to task many of the various specious and unfair criticisms of parapsychology, while simultaneously pointing out the still current limitations of the field.
etzel cardeña, ph.d. (for a complete review see Cardeña, E. (2006) Review of An Introduction to Parapsychology, 5th ed., by Harvey Irwin and Caroline A. Watt. Journal of Parapsychology, 70, 377-381).