The Acrobat Family is one of Pablo Picasso's highly rated works from his Rose Period. The painting was one of the first two works by the artist acquired by the Stein's, and in 1922 it came to Gothenburg Art Museum. In catalogues, the materials used for the work are described as a mix of gouache, pastel, watercolour and Indian ink on cardboard; however, the information is often contradictory and inaccurate. An extensive scientific investigation of the painting was carried out to unravel Picasso's technique, materials and the object's condition. The results indicate that the cardboard is of an acidic nature and the techniques used by the artist are based on different binding media, possibly oil, wax and polysaccharides. Interesting results have been achieved on the discoloured blue areas, where ultramarine blue and Prussian blue are the main components.