Women's health expert Alisa Vitti will unveil her book 'WomanCode' at the DKNY store on West Broadway Tuesday, April 23 from 5 to 8 p.m. The book tells women how to "perfect your cycle, amplify your fertility, supercharge your sex drive and become a power source." Each $25 admission fee comes with the book. Guests will also get champagne, hors d'oeuvres and 10 percent off DKNY's summer collection. A portion of event proceeds will benefit the Somaly Mam Founation, which fights modern-day slavery and human trafficking.