The cassette version has Louise Hay explaining about self-esteem and subliminal technology on the A-side, followed by the music and audible affirmations. On the B-side, all you can hear is the music. Yes, the phrases do sound a bit childish, but that is exactly what the subconscious mind responds to - simple positive statements delivered in a warm and friendly voice. Since self-esteem or the lack thereof lies at the root of many psychological problems, this is a great place to start in a programme of self-improvement. Hay is an expert in the field and is blessed with a very comforting voice. Listening to this cassette does work if you are consistent about it. What is even more effective, is when you memorise some of the affirmations and repeat them to yourself, silently in your mind, throughout the day. No cutting-edge brain entrainment methods (such as metronomes) are used here, but her reassuring voice makes up for that. Give it a try!