'Inside Bill's Brain: Decoding Bill Gates' is a 2019 documentary series that offers an intimate look into the mind of the tech visionary and philanthropist. Directed by Davis Guggenheim, the series explores Gates' upbringing, his role in founding Microsoft, and his post-Microsoft philanthropic endeavors through the Bill & Melinda Gates Foundation. It provides a nuanced portrait of a man striving to solve some of the world's most pressing issues.