NIST released 3 self-guided online introductory courses on the NIST Special Publication (SP) 800-53 security and privacy control catalog, the SP 800-53A control assessment procedures, and SP 800-53B control baselines. NIST SP 800-37 - Risk Management Framework (RMF) Introductory Course: csrc.nist.gov/CSRC/media/Pro… NIST SP 800-53, Security and Privacy Controls for Information Systems and Organizations: csrc.nist.gov/csrc/media/Pro… NIST SP 800-53A, Assessing Security and Privacy Controls in Information Systems and Organizations: csrc.nist.gov/csrc/media/Pro… NIST SP 800-53B, Control Baselines for Information Systems and Organizations: csrc.nist.gov/csrc/media/Pro…