What is the book (or books) you've given most as a gift, and why? Or what are one to three books that have greatly influenced your life? Mastery by George Leonard. I first read this book 20 years ago, after reading Leonard's Esquire article, the seed from which the book grew. Leonard wrote the book to share lessons from becoming an Aikido master teacher, despite starting practice at the advanced age of 47. I raced through its 170-plus pages in a state of almost feverish excitement, so strongly did it affirm our swimming method. The book helped me see swimming as an ideal vehicle for teaching the mastery habits and behaviors closely interwoven with our instruction in the physical techniques of swimming. I love this book because it is as good a guide as I've ever seen to a life well lived. A brief summary: Life is not designed to hand us success or satisfaction, but rather to present us with challenges that make us grow. Mastery is the mysterious process by which those challenges become progressively easier and more satisfying through practice. The key to that satisfaction is to reach the nirvana in which love of practice for its own sake (intrinsic) replaces the original goal (extrinsic) as our grail. The antithesis of mastery is the pursuit of quick fixes. My five steps to mastery: Choose a worthy and meaningful challenge. Seek a sensei or master teacher (like George Leonard) to help you establish the right path and priorities. Practice diligently, always striving to hone key skills and to progress incrementally toward new levels of competence. Love the plateau. All worthwhile progress occurs through brief, thrilling leaps forward followed by long stretches during which you feel you're going nowhere. Though it seems as if we're making no progress, we are turning new behaviors into habits. Learning continues at the cellular level . . . if you follow good practice principles. Mastery is a journey, not a destination. True masters never believe they have attained mastery. There is always more to be learned and greater skill to be developed.