An Apostle's Witness is a rare and precious gift in today's world. And the testimony of President Boyd K. Packer, developed over the course of more than fifty years as a General Authority, is filled with wisdom and understanding. "All knowledge is not necessarily of equal value," President Packer reminds us. In this timely book, he speaks of truths that "can be crucial to happiness as well as to exaltation." These are truths "most worth knowing," and they are essential to our progress in mortality and throughout eternity. "The most important truth," writes President Packer, "is, of course, my witness of Jesus Christ." The stories, experiences, and principles he shares in this volume bear powerful witness of that greatest truth of all.