This popular science film from the Popular Encyclopedia series consists of three stories: 1 – How a Newspaper Is Born (a popular account of the various stages of newspaper development and printing); 2 – "Reptiles" (about the different classes of reptiles and their characteristics); 3 – "Rubén Martínez Villena" (a biography of the poet and revolutionary Rubén Martínez Villena).
No cast listed.