Once You're Lucky, Twice You're Good is a book written by Sarah Lacy and published in 2008. It is about some of the most successful companies of Silicon Valley and an in-depth insight into the story behind the founders, including anecdotes and other stories.

External links Book review by Wired magazine Interview with Sarah Lacy Book reviews from readers at Goodreads Sarah Lacy's Hot Book-Signing Party covered by Wired magazine