This book was written to entice intelligent young people of all nationalities to work in International Development, while at the same time, jumpstarting their learning process to become exceptional consultants by providing methodologies, concepts, ideas, and sources to enable them to expand their consulting abilities far beyond those of the present generation, and to produce better and more cost-effective solutions to the world's most pressing problems. The range of topics is vast: consultant roles, skills and attitudes; problem-solving, creativity, study design, simulation models, organizational development, group behavior, psychology and beyond. It will open many doors for anyone entering the fray. This book is based author's 40 years of experience as a consultant contracted or employed by numerous consulting firms and several UN agencies, The World Bank, and USAID, in 60+ countries as an expert in health care management for Governments, worldwide Tuberculosis management, and making model non-profit organizations sustainable without subsidies from a donor. He was also one of the early leaders in organizational development from which consulting skills were studied and developed, and he has spent his entire career honing those skills. His hope is that the next generation does it better than he did.