Susan K. Perry, Ph.D., is a social psychologist, a widely respected relationship expert, and a bestselling author. Her special interest is "positive psychology" -- how ordinary individuals and couples can create great lives. What works, not just what's wrong. Her latest book is Loving in Flow: How the Happiest Couples Get and Stay That Way for which she interviewed dozens of exceptionally satisfied long-term couples.

Dr. Susan is also the award-winning writer of more than 800 articles, essays, and advice columns. She is a columnist for The Cradle.com and CouplesCompany.com, and has written for and been quoted as an expert in such periodicals as Family Circle, Us Weekly, Psychology Today, Cosmopolitan, Ladies Home Journal, Women's Health and Fitness, USA Today, The Los Angeles Times, and Los Angeles Magazine.

Dr. Susan has also written books for writers (Writing in Flow), for parents (Playing Smart), and for teens (Catch the Spirit). She has taught psychology and writing at UCLA Extension, other universities, and online. She blogs about creativity for Psychology Today. Visit Dr. Susan's own site.