Noted architect and engineer Félix Candela (b. Madrid 1910, lived in Mexico 1939-1970, moved to U.S. in 1970 - d. 1997) and his most iconic engineering structures works in Mexico, his hyperbolic paraboloids (saddle, wings and umbrella shaped) and gravity-defying roofs in commercial, religious and civil buildings proved the real nature and potential of reinforced concrete in structural engineering. Many of Candela's larger projects in Mexico were given to him by the Mexican government in the 1950's and 1960's. In the book "the trail of Félix Candela shells of concrete building in Mexico and in the world" his work in Mexico and other countries is covered, revealing his great ingenuity and his legacy in the field of architecture. Coordinated by Juan Ignacio del Cueto Ruiz-Funes, it explores the works projected, calculated or built under the influence of the teachings of that great architect and leaves aside those, better known, in which he intervened directly through a series of examples of shells designed and built by various architects and engineers, sometimes advised by Candela, sometimes not, but all raised under his influence, in the most remote places on the planet: from México, Guatemala, Cuba or United States, to almost anywhere in the rest of Latin America, Britain, Germany and in his homeland.