Molly Fischer reviews “Glossy: Ambition, Beauty, and the Inside Story of Emily Weiss’s Glossier,” by Marisa Meltzer, and “Extremely Online: The Untold Story of Fame, Influence, and Power on the Internet,” by Taylor Lorenz.
2023 is the year of the star-studded gift book, with memoirs and biographies covering rockers, auteurs, poets, controversial executives and, yes, Julia Fox.