Consists of 55 technical notes which describe the research conducted by the Princeton Engineering Anomalies Research (PEAR) program at Princeton University from 1983 to 2005. The research addresses a number of topics in consciousness-related anomalous pheonomena of possible relevance to modern engineering practice. Using conventional instrumentation and data processing equipment and techniques, the program endeavors to identify those engineering devices, systems and processes most likely to display operator-related anomalies in their performance and to illuminate the characteristics of such aberrations.