Researcher and author Thomas J.
Stanley burst onto the scene with his fascinating book, 'The Millionaire Next Door.'
Based on his interviews with and surveys of over 1,000 self-made millionaires, the book delivers a number of pieces of solid advice for building wealth.
According to Business Insider, the first task is to learn how to save and live frugally.
Only when you have those habits ingrained should you turn to investing.
Next, learn to base your investments on increased earnings.