The document discusses the role and functions of a health records library. It describes how a health records library stores chronological records of a patient's medical history, examinations, tests, treatments, and procedures. The library is responsible for storing records of both current and deceased patients and supplying records for admissions and appointments. It also outlines various units within health information management, including ward service, coding, admissions/discharges/deaths, and the library section itself. The library preserves records to allow for continuity of care, research, and training of medical professionals. Records are filed and retrieved upon legitimate requests and tracked using tracer cards.