Over the four years of study, efforts have been made to bond leadership with field-oriented exercises such as: 1) The Intensive Program on Sustainability; 2) an integral approach focused on sustainable integrated watershed management of arid regions; 3) sustainable development of programs in Cambodia, Vietnam, and Thailand for qualifying students with problem-solving processes to combat issues such as flooding, lack of proper urban environmental infrastructure, and health risks; and 4) the Greater Pearl River Delta program with multicultural diversity to bring about sustainable urban development for a green city. All of those are described in the book. Last but not least, APIEL’s resonance throughout international networks and alumni are introduced.