"To look inside my works is no different from exploring light in Nature. Here I am filled with deep joy. My eyes delight in the blue of the sky, the pale green of the pastures. I gazed at the proud mountain ranges, hoping to conquer them with the help of the harmonious beauty of color". Giovanni Segantini. Giovanni Segantini (1858-1899) achieved prominence for his allegorical depictions of the Swiss mountains and the unique radiance of his paintings. His works created a furor, for instance, at exhibitions by the Vienna and Munich Secessions. Segantini's desire to translate the brilliantly clear light he experienced in the alpine world into his pictures led to an enormous painterly development that becomes manifest throughout all of his creative phases, reaching its climax in those paintings influenced by the mountain landscapes of the Engadine Valley. This monograph, which includes numerous illustrations and essays by Dieter Bachmann, Pietro Bellasi, Ulf Küster, Guido Magnaguagno,Annie-Paule Qu insac, Diana Segantini, Patrick Stoffel, and Beat Stutzer as well as a biography by Fiona Hesse, pays tribute to Segantini's relevance as a reformer of landscape painting and pioneer of modernism, and assigns him a new place in art history as a painter of light.