There were many good books on sales for pharmaceutical sales representatives. The following were some of the more famous ones: " Pharmaceutical Representative's Selling Skills " by David Bodwani is a book on pharmaceutical representative's selling skills. It covers how to build relationships with customers, how to develop sales plans, how to promote drugs, and so on. Pharmaceutical Marketing Management by Michael Freeman and David Bodwani is an introduction to pharmaceutical marketing management. It covers the tasks of pharmaceutical representatives, sales strategies, marketing strategies, and so on. 3. Pharmaceutical Marketing Strategy: Written by Tom Rockwell and Michael Freeman, it is an introduction to pharmaceutical marketing strategies, covering how to target customers, how to choose the right sales channels, and so on. 4 " The Growth of Pharmaceutical Representatives ": The authors were Peter Harrington and Tom Rockwell. It was a book that introduced the growth of pharmaceutical representatives, including how to improve sales ability and how to build connections. The Psychology of Sales by Robert Cialcini is an introductory book on sales psychology, covering how to build trust, how to listen to customers, how to solve problems, and so on. These are some of the more famous pharmaceutical sales books. Of course, there are many other excellent books that readers can choose to read according to their own needs and interests.