This short publication bears a strong message - prevention education works. If it is done well, it is effective. If done immediately, it will have long-term impacts. If done massively, it can turn the tide. Education programmes must help young people to understand the nature of the epidemic, know the behaviours and situations to avoid, and establish relationships that are protective of themselves and others as well as supportive of those infected and affected by HIV and AIDS.This booklet provides illustrations of the many diverse activities that UNESCO undertakes to prevent the spread of the epidemic. These activities are admittedly just a beginning but we hope that others will join us in the direction we and our partners are taking. Prevention makes sense. Prevention saves lives. And education is the key to effective prevention.