National Academies Press (NAP)
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The National Academies Press (NAP) publishes the reports of the National Academies of Sciences, Engineering, and Medicine. The NAP publishes more than 200 books a year on a wide range of topics in science, engineering, and medicine, providing authoritative, independently-researched information on important matters in science and health policy.
- We offer more than 8,500 titles in PDF format. Almost all of these PDFs can be downloaded for free by the chapter or the entire book.* See About PDFs for more information on accessing our digital content.
- Many of the books published by the Transportation Research Board are available as free PDFs through NAP. Most of TRB's publications are only available for purchase on the TRB website. Please check the TRB website or call (202) 334-3213.
- Under the Joseph Henry Press (JHP) imprint, the National Academies Press offers books for the science-interested general public. The majority of these books are not available for free PDF download.