Détails du produit

Brian Tracy The Psychology of Success 6 Cassette Set Nightingale-Conant Vintage Vintage "The Psychology of Success: Ten Proven Principles for Winning" by Brian Tracy, published by Nightingale-Conant Corporation. Set includes 6 cassette tapes covering all 12 program sides: The Psychology of Success / 2. The Psychology of Failure The Principle of Purpose / 4. The Principle of Excellence The Principle of Responsibility / 6. The Principle of Service The Principle of Concentration / 8. The Principle of Cooperation The Principle of Creativity / 10. The Principle of Self-Development The Principle of Integrity / 12. The Principle of Courage A classic personal development / success program from renowned motivational speaker Brian Tracy, perfect for collectors of vintage self-help audio or fans of his work. Condition: Untested — sold as-is. Binder case shows shelf wear and scuffing on cover. See photos for exact condition.