Pedro Portugal’s ambitious project grows from his analysis of games and constructions—for example, the cube. A tool used in the perceptual training of children, it teaches them forms, colors, and manual dexterity, as well as stimulates their visual memory. The idea of the teaching cube was developed here in different ways. In Lisbon, at the center of the gallery on the floor, the artist presented a large flattened cube in the form of a cross; into its sides he cut 16 openings. The different forms of these openings correspond to marks of style of some of the 20th-century’s most famous artists: