The Four Hour Workweek
Cliché as it is The 4 Hour Work Week had a huge impact on me as I found it at exactly the right time and followed it.
The One Thing
Recently “The One Thing” has had a large impact on how I look at what I’m doing.
The Ultimate Sales Letter
In terms of having a marketing foundation I think anyone who’s selling anything with words and has not read “The Ultimate Sales Letter” by Dan kennedy is shooting themselves in the foot.