In 2009, at the age of twenty-three, Deborah Feldman packed up her young son and their few possessions and walked away from her insular Hasidic roots. She was determined to forge a better life for herself, away from the rampant oppression, abuse, and isolation of her Satmar upbringing in Williamsburg, Brooklyn. Out of her experience came the incendiary, bestselling memoir "Unorthodox, "and now, just a few years later, Feldman has embarked on a triumphant...