Introducing the Little Black Book of Business Letters by Michael C. Thomsett. This comprehensive book is a must-have for anyone looking to improve their business writing skills. With 160 pages of expert advice, you'll learn how to craft effective and professional business letters that will impress your clients and colleagues.

The book covers a wide range of topics including different types of business letters, common mistakes to avoid, and tips on how to communicate your message clearly and concisely. It also includes sample letters that can be easily adapted to suit your specific needs. Whether you're a seasoned professional or just starting out, the Little Black Book of Business Letters is an essential tool for anyone who wants to communicate more effectively in the business world.