I don't think any good book is based on factual experience. Bad books are about things the writer already knew before he wrote them.
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About Carlos Fuentes
Carlos Fuentes was a 20th-century Mexican writer. Carlos Fuentes MacĂas was a Mexican novelist, essayist and ambassador to France. Among his works are The Death of Artemio Cruz (1962), Aura (1962), Terra Nostra (1975), The Old Gringo (1985) and Christopher Unborn (1987). Read more on Wikipedia →