“How can Rural Advisory Services (RAS) reach millions of smallholder farmers in a poverty oriented, ecological, and financially sustainable way?” This was the starting question of a one-year learning process undertaken by the Swiss Agency for Development and Cooperation’s (SDC’s) Agriculture and Food Security Network. The learning process began in September 2014 with a review of project documents and selected key informant interviews pertaining to long-term SDC-financed rural advisory projects in Vietnam, Laos, Bangladesh, Nepal and Kyrgyzstan. Also considered were RAS systems in China and India, where development partners play a lesser role. The book’s reflections on 20 years of experiences in Asia articulates the lessons learned and provides recommendations on how RAS systems can best reach out to large numbers of agricultural women and men producers in a poverty-oriented, ecological and financially sustainable way.