William A. Berry, a name synonymous with the open-source teaching movement, is a visionary educator who has dedicated his life to transforming the world of education through the power of collaboration and open knowledge sharing. His journey is a testament to the unwavering commitment to accessible and innovative teaching methodologies, an innate passion for knowledge, and a profound belief in the potential of open-source education. For those who frequent the “Open Source Teaching” website, William’s name represents inspiration, expertise, and a profound love for the world of open-source education.