From Apple, Amazon, and Facebook to LINE, WeChat and TikTok, digital platforms dominate contemporary life. This course provides an intellectual voyage of the global spread of digital platforms from the days when they were not yet recognized as platforms to the contemporary era when users can hardly think of an internet without platforms. We will explore questions concerning the penetration of platforms into the social fabric of our digital life on a global scale while paying attention to the local conditions and specificity. Students will engage with key concepts, theories, and approaches related to platform studies through readings and discussions about different types of platforms, ranging from e-commerce and social media to live-streaming and on-demand service matching.