Charles Haanel covers a wide range of topics in The Master Key System, from how to feel well to how to get wealthy. Haanel demonstrates how to get what we want most by employing exact logic and a consistent, rational framework. The Master Key System is rumored to be what inspired Bill Gates to leave Harvard and start Microsoft. This book will not only leave you 'feeling' good but also 'thinking' good. If you wish to improve your personality and develop the confidence to achieve any worthy personal purpose and enjoy life's beauty and wonder, this is a must-read for you.