I recommend a book on channel sales techniques.

Channel Selling Skills: A Real World Guide was a book that introduced channel selling skills that could help salespeople improve sales performance and profits. This book introduced the basic concepts, processes, and methods of channel sales to readers through rich case studies and practical techniques. The author lists a variety of channel sales techniques, including online marketing, social media sales, email sales, telephone sales, face-to-face sales, etc., and provides corresponding sales strategies and techniques for different channel characteristics. The content of this book is detailed and easy to understand, suitable for sales personnel to read, but also suitable for business management personnel reference. By reading this book, salespeople can gain a deeper understanding of channel sales skills, improve sales performance and profits, and bring more business opportunities to the enterprise.