Playwright and author Heather Harpham joins us to discuss her memoir Happiness: A Memoir: The Crooked Little Road to Semi-Ever After. A twisting tale of love, humor and sacrifice, it follows Heather's trials as a new mother after she discovers her newborn daughter has a life-threatening illness. Heather Harpham will appear for a talk and book signing on July 31 at 7 p.m. at the B&N Upper East Side (150 East 86th St., between Lexington and 3rd Ave.).