Pierre Guiraud was a French linguist, born in 1912, and died in 1983, author of an important and original work: in particular has published a Dictionary of dark etymologies, an erotic dictionary, books on François Villon, style and Gros, is French, slang, word games ... Author of a work on general semiotics published in its original version in French in 1971 and published in Spanish with the title The Semiology in 1972 by Century XXI Publishers, work in the Which exposes the notion of 'semiological functions', particularly important for its development of the concepts of attention and participation.