by Manuel J. Smith · GRIJALBO: AUTOAYUDA Y SUPERACION · tapa blanda · ISBN 9788425329982
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«Cuando digo no me siento culpable» is the self-help guide by Manuel J. Smith, published by Grijalbo in paperback (288 pages, in Spanish).
A classic of practical psychology that explains why saying "no" generates guilt and proposes systematic assertive therapy to defend one's own rights. With dialogues and everyday examples, it teaches how to handle criticism, express opinions, and set limits without aggression, thereby improving communication and personal relationships.
Translation by Ramón Hernández Sol. Original title: "When I Say No, I Feel Guilty". Work originally published in 1975; this Spanish edition was published in 1996.
For those who wish to gain confidence in relating to others, learn to refuse without guilt, and defend their opinions assertively in daily life.
John Maynard Smith was a British theoretical and mathematical evolutionary biologist and geneticist. Originally an aeronautical engineer during the Second World War, he took a second degree in genetics under the biologist J. B. S. Haldane. Maynard Smith was instrumental in the application of game theory to evolution with George R. Price, and theorised on other problems such as the evolution of sex and signalling theory.
