perhaps the best-loved roman fleuve of the twentieth century: "[an] epic of two heroic yet believably realistic men that would in some ways define a generation". Development of the novel sequence Although sequences of genre fiction are sometimes not considered to be romans-fleuves, novel sequences are particularly common in science fiction and epic fantasy genres. The introduction of the preconstructed novel sequence is often attributed to E. E. Doc Smith, with his Lensman books. Such sequences, from contemporary authors, tend to be more clearly defined than earlier examples. Authors are now more likely to announce an overall series title, or write in round numbers such as 12 volumes. These characteristics are not those of the classical model forms, and become more like the franchises of the film industry. Other examples Jacques Abeille's Le Cycle des contrées Louis Aragon's Cycle du Monde Réel Hirohiko Araki's JoJo's Bizarre Adventure A. S. Byatt's "Frederica Potter" quartet Jacques Chardonne's Les Destinées sentimentales James Fenimore Cooper's Leatherstocking Tales John Crowley's Ægypt Cycle Lawrence Durrell's Alexandria Quartet and other sequences Ford Madox Ford's Parade's End C. S. Forester's "Horatio Hornblower" series John Galsworthy's The Forsyte Saga Carolyn Keene's "Nancy Drew Mystery Stories" Doris Lessing's Children of Violence Naguib Mahfouz's The Cairo Trilogy Thomas Mann's Joseph and His Brothers Roger Martin du Gard's Les Thibault Yukio Mishima's The Sea of Fertility Anaïs Nin's Cities of the Interior Benito Pérez Galdós's Episodios nacionales Anthony Powell's A Dance to the Music of Time Dorothy Richardson's Pilgrimage Romain Rolland's Jean-Christophe John Roman Baker's "The Nick & Greg Books" Philip Roth's "Zuckerman" novels Paul Scott's Raj Quartet C. P. Snow's Strangers and Brothers Anthony Trollope's Chronicles of Barsetshire and Palliser novels John Updike's "Rabbit Angstrom" books Henry Williamson's Chronicles of Ancient Sunlight A. N. Wilson's Lampitt Papers Publishers' nonfiction series Notable nonfiction book series for the general public have included: Architecture: Pevsner Architectural Guides Biography: The Republic of Letters; Great Lives History: History of the Great War Science: New Naturalist Library Self Instruction: Teach Yourself Sport: Badminton Library Travel: Murray's Handbooks for Travellers; Blue Guides Academic and scholarly publications In scholarly and academic publishing, scientific and non-fiction books that are released serially (in successive parts) once a year, or less often, are also called a series. (Publications that are released more often than once a year are known as periodicals.) The connection among books belonging to such a series can be