The Maternal and Child Health (MCH) Library has released a new edition of its resource “Depression During and After Pregnancy:  Knowledge Path.”  This electronic guide includes recent resources about the prevalence and incidence of perinatal depression, identification and treatment, impact on the health and well-being of a new mother and her infant, and implications for service delivery.  The knowledge path, produced by the MCH Library, contains information on Web sites, publications, and databases.  Separate sections present resources for professionals (health professionals, policymakers, program administrators, and researchers) and for women experiencing perinatal depression and their families.  The knowledge path is available at http://mchlibrary.info/KnowledgePaths/kp_postpartum.html.