Inc. Yourself is the longest-selling business book in continuous print in the history of trade publishing, with more than 500,000 copies sold since 1977.his "entrepreneurial classic" (CNBC) is now completely revised and updated—and available in a lower-priced paperback—to help new and recent entrepreneurs. Written in clear, easy-to-understand language, Inc. Yourself is a no-nonsense, step-by-step guide to success. It provides meticulously researched information on the latest tax laws and legislation that affect individuals and small businesses.