As a 64 year old person, with former law enforcement experience, I know from past experience what it takes to effectively study certain specific subject matter much of which may be out of ones normal scope of knowledge. As far as the sport of exercise goes, even though I have decades of hands on experience in the gym, I had NO prior personal training experience. I found the material in the Fitness Mentor C.P.T. course very complete, easy to follow and there are numerous ways to study and RETAIN what you read which is very, very important. I took the C.P.T. course and studied for about 3 months. Eddie was always there to answer questions and I also found the Face Book group helpful along with the webinars and extra online groups. Overall this is a very good way to get certified as a Personal Trainer.