HackerVijay
It showed me 3 things
1. A super-easy Goal setting system - It showed me a simple way to set and achieve goals in all the areas in my life. Actually I learnt that, we have to set goals in only 4 areas in our life. (Health, Wealth, self-improvement, and social). No other book showed me that I need to look at only 4 areas to have a great life. This was life changing for me and now I have clear goals setup for 2016.
2. How to read a book super-fast : I found the easiest way to read a book. Now I can read a book in about 1hr. Previously it used to take me 10hrs. This was not speed-reading, but another technique. I used to practice speed reading before, but this book showed me that there is a completely different way.
3. The best way to make money is entrepreneurship: I learnt that the best way to make money is not stock markets, day trading and others, but it is only through entrepreneurship. I learnt that we we don't need millions to retire in life and we can achieve the money we need by starting a lifestyle business with just one employee(me).