Transience and the economic use of resources are central themes in German artist Heike Beyer's work. Materiality is also important--often festive, but never overtaxed. This exhibition catalogue records three scholars' reactions to Beyer's installation for the Museum Ludwig in Cologne, in which the artist covers the 36-foot-high room in colored crepe paper, which, over time, is bleached by daylight. The book also includes several images that may have served as references or inspirational materials for Beyer--drawings, paintings, photographs. They are at once scientific, romantic, beautiful, and cryptic.