Introduction / Gyorgy Kepes -- Structure: visual documents -- Atomism, structure and form: a report on the natural philosophy of form / Lancelot L. Whyte -- Structure, substructure, superstructure / Cyril Stanley Smith -- Object and effigy / Richard Held -- The discovery of form / Jacob Bronowski -- Conceptuality of fundamental structures / R. Buckminster Fuller -- Structure, construction, tectonics / Eduard F. Sekler -- Is architecture moving toward unchangeable forms? / Pier Luigi Nervi -- On the design process / Pier Luigi Nervi -- Building toward the community structure / Alison and Peter Smithson -- Some thoughts on collective form / Fumihiko Maki and Masato Ohtaka -- Structure and communication / I.A. Richards -- Syntactic structure in the visual arts / H.L.C. Jaffe -- Structure as art? Art as structure? / Max Bill -- Illusion as structure / Richard Lippold -- Concrete painting as structural painting / Margit Staber -- Biographical notes on the authors