Women Givers: Empty Your Closets for Your Favorite Cause Christena Reinhard is Co-Founder of Union & Fifth, which makes it easy to sell designer clothes We love that you love our content! Please subscribe to read the rest. Author: Kiersten Marek Kiersten Marek, LICSW, is the founder of Philanthropy Women. She practices clinical social work and writes about how women donors and their allies are advancing social change. View all posts by Kiersten Marek