Objectives: This study evaluated the change in the concerns, wellbeing, and lifestyle behaviors of informal caregivers of people with cancer attending Penny Brohn UK's Living Well Course (LWC), a self-management education intervention. Design: A pre–postcourse design collected self-reported quantitative and qualitative data from informal caregivers attending a LWC. Setting/Location: Penny Brohn UK is a United Kingdom-based charity (not-for-profit) providing specialist integrative, whole person support, free of charge, to people affected by cancer.