Think & Grow Rich Book by Napoleon Hill

Classic book 'Think & Grow Rich' by Napoleon Hill. Napoleon Hill spent over 20 years interviewing and studying the habits of over 500 successful individuals, including Andrew Carnegie, Henry Ford, Thomas Edison, and other titans of industry. His goal was to discover a formula for success that anyone could follow. Hill distilled their secrets into 13 core principles, which he claimed would help anyone achieve success, wealth, and personal achievement if practiced consistently.