Nonfiction narratives longer than about 3000 words often demand different, more various structures than shorter pieces do. In this workshop, authors and longform writers Deborah Blum and David Dobbs will describe open a discussion of literally storytelling by describing how geometric shapes (Blum) and musical forms (Dobbs can offer models for conceptualizing, organizing, and composing narratives from about 3000 words up. Is you story a parabola? A circle? A pyramid? Or is it a pop song, a fugue, or a sonata? With a variety of forms to consider as models, you can create what Blum calls "a structured seduction of the reader." Which, when it works, makes everybody feel good. Pulitzer Prize winner Deborah Blum, author of The Poisoner's Handbook and Love at Goon Park, writes for leading magazines and literary journals including Scientific American, Slate, Lapham's Quarterly and Tin House and keeps her blog, Speakeasy Science, at PLOSblogs. She teaches nonfiction writing at the University of Wisconsin, Madison. David Dobbs, author of Reef Madness and the Atavist hit My Mother's Lover, writes features for The New York Times Magazine, The Atlantic, National Geographic, Slate, and other magazines, and is working on his fourth book, The Orchid and the Dandelion. His blog Neuron Culture is at Wired.