Agriculture & Natural Resources: OER Textbooks and Resources

The Digital Public Library of America brings together the riches of America’s libraries, archives, and museums, and makes them freely available to the world. It strives to contain the full breadth of human expression, from the written word, to works of art and culture, to records of America’s heritage, to the efforts and data of science.

HathiTrust is a partnership of academic & research institutions, offering a collection of millions of titles digitized from libraries around the world.

Library of Congress Digital Collections.

The National Agricultural Library (NAL) is one of five national libraries of the United States. It houses one of the world's largest collections devoted to agriculture and its related sciences.