Also available are the DSM-5, the DSM-5 Handbook of Differential Diagnosis, the DSM-5-TR Clinical Cases, the DSM-5 Handbook on the Cultural Formulation Interview and Guía de consulta de los criterios diagnósticos del DSM-5 (the Spanish Edition of the Desk Reference to the Diagnostic Criteria from DSM-5).
The previous editions of the DSM are not available online.
The APA Handbooks in Psychology provide a comprehensive overview and an in-depth study of specific subfields within psychology.
The links will redirect you to the list of chapters in the handbook in PsycBOOKS via Ovid.