Classification of books in the library. by University of California (). Library; Rowell, Joseph Cummings, Publication date. Books are generally classified into several categories for children: Picture Books are generally 32 pages long with color illustrations on every page. Text can. literature relating to book classification in libraries is consider- ably behind the theory and method as developed and employed in some centers of library service. From its inception inLQ has been dedicated to the publication of scholarship, reports of research, evaluative essays, and thoughtful reviews of resources from library and information science and other fields. Brunet provided five major classes: Picture book stories rely on strong visual elements with the text and illustrations being intricately connected. Pay attention to names, capitalization, and dates. Social Sciences, Library Science.