Nearly 40 million Americans visit Internet porn sites at least once a month. Not surprisingly, concerns about the effect of porn on individuals and relationships are also on the rise. Changes in how people access and use pornography have taken the therapeutic community by surprise. Many therapists don't yet comprehend the extent of the problems porn can cause, or how deeply its use can harm individuals and their intimate partners. What's more, pornography is quickly moving from an individual and couples' problem to a public health problem, capable of deeply harming the emotional, sexual, and relationship well-being of millions of men, women, and children.