The publisher of Careless People kept the existence of this memoir a secret until a few days ago – with good reason, it turns out.

For seven years, beginning in 2011, the book’s author, Sarah Wynn-Williams, worked at Facebook (now called Meta), eventually as a director of global public policy. Now she has written an insider account of a company that she says was run by status-hungry and self-absorbed leaders, who chafed at the burdens of responsibility and became ever more feckless, even as Facebook became a vector for disinformation campaigns and cosied up to authoritarian regimes.