More than two decades ago, after studying expert performers from a wide range of fields, my colleagues and I came to realize that no matter what the field, the most effective approaches to improving performance all follow a single set of general principles. We named this universal approach “deliberate practice.” Today deliberate practice remains the gold standard for anyone in any field who wishes to take advantage of the gift of adaptability in order to build new skills and abilities, and it is the main concern of this book.