The field of family engagement is being revitalized. Professionals in schools, libraries, early childhood and afterschool programs, and other organizations are turning away from programs and practices designed for families without their valuable input. Instead, today's family engagement leaders are striving to include parents and other family members as essential partners in designing efforts to build relationships between families and strengthen their ability to support their children's learning and healthy development. This report is a companion commentary of the "Family Engagement Playbook." The Playbook is a collection of research-based approaches to strengthen individual competencies and organizational support. It captures many of the approaches, tools, and models that organizations are using to understand the concept of co-creation and get better at implementing it with their teams. The companion commentary outlines: (1) The rationale behind the Playbook; (2) The different facets of building capacity for co-creation, including shifting mindsets, relationships, and organizational practices; (3) The different approaches in the Playbook and the outcomes they can bring; and (4) Ideas for using the Playbook in a range of different settings.