Inside Mark Zuckerberg's Lost Notebook
In the early days of Facebook, Zuck kept his plans for world domination in handwritten journals. In a journal with unlined 8-by-10 paper, he sketched his mission and product design and explored how a tiny company might become a vital utility for the world. In detail, he described features called Open Registration and Feed, two products that would supercharge his company. In his jottings are the seeds of what would come—all the greatness and the failings of Facebook. Over the next 10 years, Zuckerberg would execute the plans he drew up there.