In this work, Perloff consolidates the thrust olf the avant garde movements of the early 20th century as a whole. She provides extensive critical and analytic discussions of Cendrars and Delauney's "La Prose du Transsiberien" (held by the Sackner Archive), Marinetti's "Zang Tumb Tuuum" (held by the Sackner Archive), and Carra's "Interventionist Manifesto" (possibly the best discussion of a Futurist collage work). In addition, several classical books and periodicals of the Futurist and Russian Avant Garde periods as well as Robert Smithson's conceptual works are extensively reviewed. -- Source of annotation: Marvin or Ruth Sackner.