Aaron McGowan discusses open data and its benefits. Open data refers to accessible, machine-readable data that is free of control mechanisms. It has been practiced for decades, though the term is newer, and has become a $6.2 billion industry. Open data promotes transparency and accountability in government and education. As an example, McGowan notes that approximately 3.2 billion in revenue is lost annually by the Canadian federal government due to a lack of open data, around 0.4% of its total budget. In education, open data can help avoid projects becoming useless after creation if the data is not accessible. McGowan provides the example of how an open data project in London, Ontario called NextStop helped citizens know public