Here are a few recommended books on sales techniques: The Intelligent Selling Person: The author of this book by Tom Hopkins provides many practical sales techniques, including how to build confidence, build relationships with potential customers, how to answer common questions, how to determine customer needs and preferences, and so on. The Intelligent Salesperson 2: This is another practical guide for salespeople that includes many sales techniques and strategies such as how to communicate with potential customers, how to identify customer needs and preferences, how to build trust and relationships, and so on. 3. Sales Techniques: How to Persuade Customers to Buy: The authors of this book, David Stone and John Stuart, provide a large number of sales techniques and strategies to help salespeople better communicate with potential customers and persuade them to buy. 4 The Art of Negotiations by Robert G. McGee and Tom Love. This book provides a wealth of negotiation techniques and strategies to help salespeople better understand customer needs and interests in negotiations and reach better deals. Sales Techniques and Strategy: This is a comprehensive book on sales techniques and strategies, covering many different sales scenarios and techniques such as sales negotiation, sales promotion, sales presentation, etc. It is suitable for sales personnel to learn and learn from.