What’s the last video you watched on YouTube? Across the world, people view more than a billion hours of video on YouTube every day. This digital platform created the attention economy that forever changed how we consume information and entertainment.

Everyone knows YouTube. And yet virtually no one knows how it really works.

Mark Bergen’s Like, Comment, Subscribe reveals the inside story of YouTube’s revolutionary technology and business model. Bergen offers a deep account of how the company upended media, culture, industry and democracy and unleashed an addiction machine that forever changed the world.