Bookshelf is an online searchable collection of more than 500 books, reports, databases, and other scholarly literature in biology, medicine, and the life sciences developed and managed by the National Center for Biotechnology Information (NCBI) in the National Library of Medicine (NLM) at the National Institutes of Health.
As the books division of PubMed Central (PMC), the digital repository of full-text journal literature, Bookshelf serves not only to preserve and maintain free access to electronic biomedical literature, but through its integration with other NCBI resources, such as PubMed, Gene, OMIM, and PubChem, it fosters both intentional and serendipitous discoveries.