There is a saying that "you are as big as your dreams" This is the main theme of the magic of thinking big book. If you think small then most probably you will never get the taste of success.
Here are the main takeaways form the magic of thinking big book. Believe in yourself that you can achieve the high level of success, and take actions towards your dreams. Surround your self with positive successful people and build relations with them. If you want to achieve big in your life I hope this book will help you a lot.