(architectures, aires de jeux, enfants, ludique, sport, amusement, espaces de jeu, playgrounds, aménagement d’espaces publics, futur, futuriste, space age, pop, bulles, utopie, espaces sphériques, Marjory Allen, Lady Allen of Hurtwood, Aktion Samtal, Adventure Playground, Günter Belzig, Joseph Brown, Riccardo Dalisi, Richard Dattner, Aldo van Eyck, Paul Friedberg, Ute Fritzsch, Group Ludic, Cornelia Hahn Oberlander, KEKS, Kounkuey Design Initiative, Alfred Ledermann, Alfred Trachsel, Renate Müller, Egon Moller-Nielsen, Isamu Noguchi, Yvan Pestalozzi, Niki de Saint Phalle, Josef Schagerl, Mitsuru (Man) Senda, Carl Theodor Sorensen, Spielwagen Berlin, Urban Deadline…)