A long-awaited new book by the nonfiction master, winner of the Pulitzer PrizeFew fish are as beloved-or as obsessed over-as the American shad. Although shad spend most of their lives in salt water, they enter rivers by the hundreds of thousands in the spring and swim upstream heroic distances in order to spawn, then return to the ocean. John McPhee is a shad fisherman, and his passion for the annual shad run has led him, over the years, to learn much of what there is to know about the fish known as Alosa sapidissima, or "most savory." In The Founding Fish McPhee makes of his obsession a work of literary art. In characteristically bold and spirited prose-inflected, here and there, with wry humor-McPhee places the fish within natural history and American history. He explores the fish's cameo role in the lives of William Penn, Washington, Jefferson, Thoreau, Lincoln, and John Wilkes Booth. He travels with various ichthyologists, including a fish behaviorist and an anatomist of fishes; takes instruction in the making of shad darts from a master of the art; and cooks shad and shad roe a variety of ways (delectably explained at the end of the book). Mostly, though, McPhee goes fishing for shad-standing for hours in the Delaware River in stocking waders and cleated boots, or gently bumping over rapids in a chocolate-colored Kevlar canoe. His adventures in the pursuit of shad occasion the kind of writing, at once expert and ardent, in which he has no equal.