High Quality Content by WIKIPEDIA articles! Robert R. Prechter, Jr. (b. 1949) is an American author and stock market analyst, known for his financial forecasts using the Elliott wave principle. Prechter is an author and co-author of 14 books, and editor of 2 books , his book Conquer the Crash is a New York Times bestseller. He also has published monthly financial commentary in the newsletter The Elliott Wave Theorist since 1979, and is the founder of Elliott Wave International and New Classics Library. Prechter served on the board of the Market Technicians Association for nine years, and as the Association`s President in 1990-1991. In recent years Prechter has supported the study of socionomics, a theory about human social behavior.