独特的美国医学图书市场魏龙泉在美国，医学书是专业书中市场最大的一类书，界限明确，市场稳定。但一种分科很细的医学书，读者至多也超不过６０００人，因此，医学书的宣传推广很容易对准目标，到达读者手中。出版社在熟悉市场情况后，可以向同一客户反复寄推广品，无须... Wei Longquan, a unique medical book market in the United States, is the largest book in the professional book market in the United States. The boundaries are clear and the market is stable. However, a very fine sub-medical medical books, readers at most up to 6000 people, therefore, medical book promotion is easy to target, reach the reader. Publishing House in the familiar market conditions, you can repeatedly send promotional items to the same customer, without ...