Book excerpt: The New Manager's Guide and Mentor. The Harvard Business Essentials series provides comprehensive advice, personal coaching, background information, and guidance on the most relevant topics in business. Drawing on rich content from Harvard Business School Publishing and other sources, these concise guides are carefully crafted to provide a highly practical resource for readers with all levels of experience and will prove especially valuable for the new manager. To assure quality and accuracy, a specialized content adviser from a world-class business school closely reviews each volume. Whether you are a new manager seeking to expand your skills or a seasoned professional looking to broaden your knowledge base, these solution-oriented books put reliable answers at your fingertips.