Here’s another story found via a reader tip. (Thanks Nicholas!) In a new book called Facebook: The Inside Story, author Steven Levy talks about Mark Zuckerberg’s notebooks, and it turns out that Levy even has some pages from one of the early notebooks. Zuckerberg has supposedly destroyed the rest.

THE YEAR I first met Zuckerberg, he was living in a one-­bedroom apartment a short walk from the Facebook offices, which were spread among a few buildings in downtown Palo Alto. Always with him was one of his notebooks. Those who visited his apartment, with its mattress on the floor and barely used kitchen, might spot a stack of completed journals. But most of his time was spent in the crowded, chaotic Facebook offices, where he could be seen, head down, scrawling in his crabbed, compact script. He sketched out product ideas, diagrammed coding approaches, and slipped in bits of his philosophy. Page after page were filled with straight lines of text, bullet-pointed feature lists, flow charts.

Zuckerberg was no longer doing much coding; he was focused mostly on the big picture. The notebooks allowed him to work out his vision in detail. When Facebook engineers and designers rolled in to the office, they would sometimes find a few photocopied pages from the notebooks at their workstations. The pages might contain a design for a front end or a list of signals for a ranking algorithm. He was still finding his way as a communicator, and the pages often opened up a conversation between the recipients and their boss. They also imbued Zucker­berg’s thoughts with a kind of inevitability. The printed page can’t be deleted or altered, or forwarded in infinitely duplicable digital form. Whiteboards appeared in abundance in every Facebook office, and employees couldn’t survive without excellent dry-eraser skills. But a Zuck notebook carried the sanctity of a papal decree.

The notebooks have now mostly disappeared, destroyed by Zuckerberg himself. He says he did it for privacy reasons. This is in keeping with sentiments he expressed to me about the pain of having many of his early IMs and emails exposed in the aftermath of legal proceedings. “Would you want every joke that you made to someone being printed and taken out of context later?” he asks, adding that the exposure of his juvenile jottings is a factor in his current push to build encryption and ephemerality into Facebook’s products. But I discovered that those early writings aren’t totally lost. Snippets, presumably those he copied and shared, present a revealing window into his thinking at the time. I got ahold of a 17-page chunk from what might be the most significant of his journals in terms of Facebook’s evolution. He named it “Book of Change.”

Dated May 28, 2006, the first page has his address and phone number, with a promise to pay a $1,000 reward for return of the book if lost. He even scrawled an epigram, a message to himself: “Be the change you want to see in this world.” Mahatma Gandhi.

The writing reveals an author with focus and discipline. He dated nearly every page. Some of the entries seem to have been created in a single burst of energy. They cover three or four pages of detailed road maps with neat sketches of sample screens. Nothing is crossed out. This is the work of someone in a maximum state of flow.

Read more at WIRED: Inside Mark Zuckerberg’s Lost Notebook