Because of his success with the windmills, William was able to go back to school. He also helped with other projects, including solar power, clean water, and malaria prevention. He wrote a book about his life, The Boy Who Harnessed the Wind: Creating Currents of Electricity and Hope. In addition, he uses his website, movingwindmills. Org, to educate and give hope to people. His main message is this: “To the Africans and the poor who are struggling with your dreams . . . trust yourself and believe. Whatever happens, don’t give up.”