The document discusses sustainable growth models for membership organizations. It focuses on recruiting, engaging, and retaining members in a post-boomer world. The objectives are to build a strong value proposition, create a culture of engagement within the organization, and develop a retention plan specific to the organization. It emphasizes the importance of engagement among members, staff, boards, volunteers, and community leaders. It also provides tips for organizations to determine engagement strategies based on what each group is willing and able to do.