Originally four books (published individually between 1946 and 1951), the structure of Paterson (in Dr. Williams' words) "follows the course of the Passaic River" from above the great falls to its entrance into the sea. The unexpected Book Five, published in 1958, affirms the triumphant life of the imagination, in spite of age and death. This revised edition has been meticulously re-edited by Christopher MacGowan, who has supplied a wealth of notes and explanatory material.