"El Lenguaje Olvidado" (The Forgotten Language) is a book written by Erich Fromm, a renowned German-American social psychologist, psychoanalyst, and philosopher. Published in 1951, the book explores the concept of symbolism, language, and the human condition. Fromm, known for his critiques of modern society and capitalist culture, delves into the world of dreams, myths, and symbolism to uncover the hidden meanings behind human expression.