If you're a human being with a pulse, you've likely heard of Lena Dunham's new memoir. Unlike the filmmaker's first book, which chronicled her early life, Famesick takes a closer look at the years leading up to the creation of Girls and its explosive aftermath. Mostly, it offers insight into what it means to become very, very famous in an age where visibility is the highest form of currency — for better and worse.

Like much of Lena's work, the...