Sella's images of the mountainous terrain of five continents are some of the most breathtaking and beautiful images of their kind ever taken - as well as astonishing feats from a technical point of view. From a twenty-first century standpoint, they possess an additional power to move the viewer that Sella could not have foreseen, constituting a salutary reminder of the fragility of such landscapes and the threats they face in our modern world. London was to be a key reference point for him throughout his career. His knowledge of the language was sufficient for him to correspond in English, his beautiful, large-scale view cameras are ordered from and made in London and his photographs were distributed for sale from the capital. London also played its part in fostering Sella's reputation during his own lifetime.