MARCY MICHAELS is a certified speech and hearing pathologist who has been researching the structure of the mouth for more than twenty-five years. Renowned for her work as a speech therapist and voice coach, she has assisted many politicians and actors in neutralizing their accents and improving speech skills overall. She lives in New York City. MARIE de SALLE attended the Sorbonne, then graduated from Sarah Lawrence College. She lives in New York City.