There is an old saying that he who does not listen to advice does not grow old. Therefore, we must understand that the advice is a suggestion expressed by someone who considers that it will have a practical utility in the performance of the work activity, as a student or simply in the life of those to whom it is addressed.The 100 tips that we make available to the managers who dare to read them are based on more than 40 years of personal experience of the author, as well as much time of study dedicated to this fascinating world of management and business management.