This is an excellent reference book for anyone interested in a wide range of subjects, including art history, natural science, sociology of culture, natural history, reference, physical geography, sociology of knowledge, applied mathematics, world history, and modern history. Published by WORLD Book, Incorporated, the WORLD Book Encyclopedia 2013 is a standard reference work that is widely used by students, scholars, and researchers. This encyclopedia provides detailed information on a broad range of subject areas, including social sciences, sociology, science, mathematics, and history. The hardcover format, illustrated with special edition features, makes it an attractive addition to any reference library. This particular copy is an ex-library edition, in good condition, and published in 2008. It is a valuable resource for anyone seeking accurate and up-to-date information on a wide range of subjects. It does not include the#14 book, which covers subjects starting with N and O. Please let me know if you have any questions!