Theoretical and practical discussion of mural painting by one of its foremost practitioners in Mexico. Contains historical reviews and stylistic comparisons as well as practical information on how to organize a team of mural painters and to teach them the craft in a series of well-defined steps, including taking photographic documentation of their work; setting up the compositional framework; outlining and painting from a movable scaffolding what materials and tools to use in what order. The appendix gives technical details on the preparation of coatings (lime or cement) before painting, of an encaustic paint, of an anti-saltpeter formula, an ethyl silicate paint, and vinyl acetate paints. -- AATA