“Unorthodox: The Scandalous Rejection of My Hasidic Roots” by 25-year-old Deborah Feldman (Simon & Schuster: $23.00) is painfully good. Through a narrative voice that is almost hypnotic, she puts you immediately in the center of her chaotic world. Flashes of adult wisdom seem almost to compete with her childlike sense of bafflement, and we watch this young author struggle fearlessly to find herself on the page. She is unlike so many other authors who have left Orthodoxy and written about it; her heart is not hardened by hatred, and her spirit is wounded but intact. She is in search of a better life, and this fine book chronicles her departure from the Satmar Hasidic sect in Williamsburg, Brooklyn.