ABSTRACT

It would be too great a stretch to present what you’re about to read as science. Because the data was collected serially and in an undisciplined way over a twenty-year period, it can hardly be considered a controlled experiment. Also, you can’t verify the product with statistics. But for me, all the data points line up, and together they explain a lot about what works and what doesn’t work throughout the course of a career. Now I want to share that understanding with you.