Very interesting that he didn't become a full-time author until 20 years after his book was published. I'm always interested in how successful people became that way.
Mr. Patterson was born in 1947, published his first book at 29 years old (1976) and didn't become a full time writer until 49 years old (1996). He's been writing an average of 2 novels per year since then (!) and is getting more prolific with age. Considering that some people never get around to "finishing their novel", I find these data points amazing.
What are you doing today that will be news worthy 20 years from now?