Clients and pupils are always asking me about the latest amazing diet, posture correction tool or fitness fad. These programs often become popular because they are presented and marketed very well. The marketing campaigns use testimonials and before-and-after transformation photos. That's one reason I was cautious about including a before-and-after photo section. But as I've created this course with you and from your ideas and proposals, I've decided to add a few of the many remarkable patient transformation photos in this lecture, because you asked me to.