Excellent purchase, both for yourself and as a gift! The set includes the best books on personal development: Fabricius F., Hagemann H.V. "How do the winners think. Scientifically based methods for achieving maximum efficiency." Ashton R. "SALES! How to sell yourself and your ideas. Sales for non-vendors." Sayed M. "Breakthrough. From excellent to genius" Brown B. "To become stronger. Understand reality. Overcome yourself. Change everything." Please yourself and your loved ones!