Pío Collivadino (Buenos Aires, 1869-1945) is more than the renowned artist who directed for 30 years the National Academy of Fine Arts and the painter of unreleased views of Buenos Aires. His collection consists of more than 3000 pieces (watercolors, engravings, sketches, letters, among others) that he kept in his workshop, today known as the Museo Pío Collivadino of the Universidad Nacional de Lomas de Zamora. His collection has for several years been the object of research and conservation of a team composed of-restorers, chemists and art historians of the Universidad Nacional de San Martín. This book is the outcome of the exchanges between researchers led by Laura Malosetti Costa who followed a working model with artist files, providing new studies on his pictorial technique, his palette and his signatures, as well as the analysis of his social networks, the construction of his identity as an artist through his photographs and his activities as muralist, set designer and decorator.