This toolkit is a compilation of tools and resources shared over the course of the Center for Care Innovation's Population Health Learning Network (PHLN) which convened 25 safety net primary care organizations over the course of two years to learn, share, build, and refine care models and implement strategies to strengthen and advance their population health management (PHM) efforts. It was designed to improve the health and well-being of more than 1.2 million Californians across this two-year program. The tools and resources that Center for Care Innovations has shared herein are intended to support other safety net clinis with PHM improvement efforts.