National Library of Medicine (NLM) | 15,519 followers on LinkedIn. The National Library of Medicine (NLM) is a leader in biomedical informatics and computational health data science research, and the world’s largest biomedical library. We lead innovation in the development of advanced tools for clinical data interpretation and decision-making through our cutting-edge research, training programs, and information services. We are distinctive within the National Institutes of Health (NIH) because of our substantial investment in sustainable biomedical information systems that make scientific literature, genomic, clinical, and other types of biomedical data readily available to those who need it.