The Book Citation Index adds 60,000 authoritative books to Web of Science, bringing together scholarly book, journal, and conference proceedings literature with the powerful features of citation navigation. This expanded content provides researchers with access to the citation network between books and the wider world of scholarly and scientific research and allows them to measure the contribution of books in specific disciplines.
Books are indexed at the chapter level. Initially, 13.5 million cited references were added to Web of Science as a result of the Book Citation Index. Book content is about 60% Arts & Humanities and Social Sciences and 40% Natural Sciences.