Whenever we propose to convince our interlocutors, we use certain strategies of persuasion without hardly realizing it. We learn them blindly with their own language but, nevertheless, they obey the rules of informal logic. It is convenient to dominate and perfect them consciously to feel comfortable in discussions, to clearly expose our ideas or refute those of others that seem wrong to us. This art of informal logic has been studied assiduously since antiquity in the discipline of rhetoric. Today, more than ever we are exposed to dubious or false arguments in political speeches, in business and in advertising. However, neither in the schools nor in the universities we are taught rhetoric in order to discover or, if necessary, use the most skillful tricks. Nicholas Capaldi, a great specialist in informal logic, offers in this book a clear and very easy to follow explanation of all the rules of correct argumentation and, above all, how to set up and dismantle the possible traps. Mastering these rules allows us to speak more easily in public, build better our arguments, discover the fallacies in political speeches, sell a product better or simply have fun with friends playing to put logical traps. With the simple explanations and fun examples of Nicholas Capaldi, any reader can train to formulate their best defenses. Always carrying this book with you, you will have at hand a perfect secret weapon to convince on all occasions without ever being convinced of impossible or absurd things, learn to defend a cause, recognize a fallacy, discover a deception, persuade a skeptic and convert the defeat in victory.