Onno W. Purbo is a prominent Indonesian information technology expert, educator, writer, and digital literacy advocate, widely recognized for his long-standing contribution to affordable Internet access, open technology, and community-based ICT education. With a strong academic background in electrical engineering, including a Ph.D. from the University of Waterloo, Canada, he has dedicated much of his career to making technology more accessible, practical, and useful for society. Over the years, he has written numerous books, articles, and training materials, while actively delivering seminars, workshops, and public lectures across Indonesia. His work covers a broad range of fields, including open source technology, community networks, rural Internet, cybersecurity, digital transformation, and artificial intelligence. Beyond technical expertise, Onno is known for his strategic vision: technology should empower people, strengthen local capacity, and reduce dependency on closed systems. Through his clear, practical, and inclusive communication style, Onno W. Purbo has become one of Indonesia’s most influential figures in Internet development, digital education, and open technology advocacy.