Karen Pryor is a scientist with an international reputation in two fields, marine mammal biology and behavioral psychology. Through her work with dolphins in the 1960's she pioneered modern, force-free animal training methods. She is the author of many scientific papers and monographs and seven books. She is a founder and leading proponent of clicker training [0], a worldwide movement involving new ways to communicate positively with pets and other animals. She is the founder and CEO of a behavioral publishing company, Sunshine Books, Inc., and its on-line divisions. Karen has three children and seven grandchildren. She lives in Boston with two clicker [0] trained dogs and a clicker trained cat.