The National Arts Club will hold an event to celebrate Costas' new picture book Dancing Women, featuring photos of dancers from around the world.  The free event will consist of a showing of many photos from the book and a discussion about the fine art of photographing dance in action, followed by a Q&A.  Costas, renowned dance photographer for more than 50 years, specializes in photographing dancers in action. Admission is free, but it is necessary to register at www.eventbrite.com/e/483325949927