Carnegie says in the preface to How to Stop Worrying and Start Living that he wrote it because he "was one of the unhappiest lads in New York". He said that he made himself sick with worry because he hated his position in life, which he attributes to wanting to figure out how to stop worrying. The book's goal is to lead the reader to a more enjoyable and fulfilling lifestyle, helping them to become more aware of, not only themselves but others around them. Carnegie tries to address the everyday nuances of living, in order to get the reader to focus on the more important aspects of life.

With Dale Carnegie's timeless advice in hand, more than six million people have learned how to eliminate debilitating fear and worry from their lives and to embrace a worry-free future. In this classic work, How to Stop Worrying and Start Living, Carnegie offers a set of practical formulas that you can put to work today. It is a book packed with lessons that will last a lifetime and make that lifetime happier.

It’s important to know that learning how to overcome anxiety (and overthinking) is possible. Whether you’re trying to figure out how to stop overthinking in a relationship, how to stop obsessive thinking about your health, or how to enjoy socializing without panicking, there are powerful techniques you can learn.