This book is a compendium of practical advice proposed by the author, which brings together ideas, notes, reflections and real anecdotes, collected through interviews with important businessmen, executives and people who manage human resources, as well as employees, freelancers or simply parents. It analyzes the great diversity of problems that arise in our daily lives and the different skills needed to solve them: from learning how to treat people to being loved naturally and sincerely; from knowing how to develop a convincing behavior to being able to convince our interlocutor.