Santiago Harker —perhaps the most important Colombian documentary photographer of his generation— has followed for several years the steps of the Comisión Corográfica, that important group of scientists, chroniclers, and artists who, led by Agustín Codazzi, traveled on muleback through six provinces of Colombia starting in 1850, for almost 9 years, with the task of mapping those provinces and recording their inhabitants, landscapes, customs, and ways of life. All of this has been made possible thanks to the support that Terpel gave to this book, as its distribution points are spread throughout the country.Many of the images that Harker captured on his journeys appear here compared with original plates from the Comisión, creating an interesting reading of both the changes and the continuities that have occurred in the country over the centuries. In Colombia de reojo Harker, always in search of our roots and always with a very Colombian sense of humor, compares 52 plates from the Comisión —whose original titles are respected— with photographs taken by him of the same places and other aspects of the regions, 160 years later.Additionally, in a fitting tribute to Codazzi, Harker also documents here some places of the Caribbean coast, that amazing region of our territory that Codazzi dreamed of knowing but could not, as death surprised him in 1859 while he was in the town of Espíritu Santo (today Codazzi), near Valledupar.