This is the Book of the Pious as you have never read it before: a faithful modern-English rendering of Judah the Pious's medieval masterpiece, made clear and inviting for today's readers. Written in twelfth-century Regensburg, the Sefer Hasidim is a complete guide to the spiritual life—a demanding and deeply humane vision of what it means to serve God with one's whole heart. Here you will find practical counsel on prayer, study, honesty in business, the care of family, the discipline of speech, and the quiet work of self-examination, all grounded in the conviction that true piety goes beyond the letter of the law. This edition preserves the warmth, directness, and moral urgency of the original while removing the barriers of archaic language. Whether you come to it as a student of Jewish tradition or as a seeker of timeless wisdom, this book will challenge, comfort, and companion you. Part of The Sacred Wisdom Library.