Sometimes, the areas you want to improve in are not job or business oriented. Maybe you want to learn a new language, or you want to build better health habits. With so much material out there, it can be easy to pick up any book with a nice title and start reading. The question is, are you choosing the right material to improve yourself? How do you know if the person giving the advice is reliable? How do you know if following the steps will give you the results you want?