Lifelong best friends Margaret and Letty are in their mid-30s. Margaret has just quit her teaching job to write a novel in Manhattan; Letty, her husband, and her four children are enjoying their first taste of worldly success in Los Angeles. Margaret soon discovers that writing is not as easy as it looks, and Letty finds herself financially over her head in the one-upmanship of L.A. living. Reading Letty's hilarious e-mails, Margaret realizes that a great story is unfolding right in front of her, and she begins a new novel based on her friend's travails. Hungry for more drama in her novel, she pushes Letty deeper and deeper into debt. Christina Schwartz's diabolical All Is Vanity sends up so many different things, you need a list to keep track of them all. Taking a drubbing are: the pretensions of would-be writers ("How many people believe they have a novel fully formed in the backs of their brains ... and are convinced if only they could manage to tear themselves away from much more important work, they would just 'write it up'?"); the consumerist frenzy of L.A. (Letty's realtor tells her that her yard "could be 'emotional' with the right landscaping'"); and, of course, the uses and abuses of female friendship. Schwartz, author of the bestseller Drowning Ruth, draws us in with farce, then changes course and gives us a bittersweet indictment of personal ambition. In the process, she shows herself as a writer both compassionate and hilariously cruel--no mean trick. --Claire Dederer