'Inside Bill's Brain' is a three-part documentary about Bill Gates, a former CEO of Microsoft, who carried out various social and economic projects with the creative and innovative mind and motivations. The first part of the documentary illustrates how Bill Gates and his team studied and introduced an innovative technology of disposing and recycling human waste for less economically developed countries (LEDC) that do not have proper sanitation facilities. "I don't want my brain to stop working," said Bill Gates. Propagating his belief in positivity, Bill Gates in these episodes attempts to articulate how he thinks about things and initiates his visions, thoughts, and strategies. Each episode deals with different social, economic, and environmental problems and how Bill Gates has strived to accomplish initiatives as to sustainability such as 'Climate Action' and 'Clean Water and Sanitation.' The interesting storytellings of his fascinating and innovative ideas and actions are well-bundled up in this documentary.