You're referring to the book "El Poder de un No Positivo" (The Power of a Positive No) by William Ury!
Most people either "accommodate" (say yes when they want to say no), "attack" (say no aggressively), or "avoid" (say nothing). Ury proposes a three-part structure to deliver a "Positive No" effectively: webphilosophia.com Yes! (Internal Affirmation): El Poder De Un No Positivo William Ury PDF
Marcus leaned back. The tension in his shoulders dropped. He had been pushing for a "Yes" that was a lie. Elena had given him a "No" that was actually a path to a better "Yes." You're referring to the book "El Poder de
Buscar es el primer paso para recuperar el control de tu vida. Este libro no te enseñará a ser egoísta, sino a ser auténtico . Un No Positivo protege tu tiempo, tu energía y tus valores mientras construye puentes en lugar de quemarlos. (Internal Affirmation): Marcus leaned back
William Ury (Coautor de Obtenga el Sí / Getting to Yes ) Concepto Central: Aprender a decir "No" de manera efectiva para proteger lo que valoramos sin destruir nuestras relaciones.