Father Gregorio Mateu is a Franciscan priest of the Third Order Regular, Clinical Psychologist, President of the Foundation for all and Happiness in our country, President of the Fundación Padre Gregorio Mateu. He is the author of the books: It's Possible to be Happy, Fantasies of a dreamer, Educating for Happiness, Adolescent Road to Happiness, Dawns Life, Shoots Tenderness, Pathways to Hope, Education in a World Postmodern, Looking Fullness, you sign ?, Rule No more than Love, the Adventure of Living, the Reach of Happiness and How to educate all our children in this society.