The present monograph is based on the catalog raisonné published in Paris in 1993. The new edition has been heavily revised and supplemented with numerous new, previously unpublished archive photos and color illustrations, including Sandoz 'monumental sculptures in public spaces in Switzerland. The new basic work on one of the most important and distinguished animaliers of the 20th century was written by Félix Marcilhac, a Parisian art dealer and internationally renowned expert. The edition records Sandoz's unusual artistic career, the diversity of his means of expression and the timelessness of his works.