This document discusses the importance of membership growth and retention for Rotary clubs. It outlines the key elements of membership development, including proposing new members, retaining existing members, and establishing new clubs. It provides guidance on identifying and recruiting prospective members, inducting and orienting new members, and keeping members involved through various roles and activities. The document emphasizes that members are clubs' most important asset and that membership growth allows clubs to strengthen their communities and achieve Rotary's mission of service.