BHL Bi-annual Newsletter (November 2021) Now Available!

BHL’s existence depends on the financial support of its patrons. Help us keep this free resource alive!

Donate Now

The Biodiversity Heritage Library (BHL) is the world’s largest open access digital library for biodiversity literature and archives. Headquartered at the Smithsonian Libraries and Archives in Washington, D.C., BHL operates as a worldwide consortium of natural history, botanical, research, and national libraries working together to digitize the natural history literature held in their collections and make it freely available for open access as part of a global “biodiversity community.”