The purpose of this thesis is to study what internet influence publication. Two questions is proposed in this thesis. One is what internet makes publication change as a media, the other is the influence of internet on distribution of books. Mass communication communicate in one-way from sender to receiver without feed-back, but internet gives space everyone communicates with equally. Publication through internet makes reader active. Thesis, professional books sold little will move into on-line. The people who want to read professional books will use data base in computer server. He prints the part of professional book in computer server. But mass book will be in printings. The character of internet communication is two-way and interpersonal. That influences distribution of books by internet-bookstore. Internet-bookstores have shortened the process of book distribution. They can discount price of books, conflicting with Resale Price Maintenance System in Korea. It is time trade by internet become dominant, so Resale Price Maintenance System was not proper for the trade by internet. The fact that the character of internet communication is two-way and internet user is active means that they are involve in process of deciding book price. The consumer or reader is not passive any more in internet communication. He is active and regarded as key factor of succeeding in internet-book store. The publisher controled over process of making, distribution, deciding price of books in the past. He is superior to authors and reader in the past. But the relation becomes equal among them owing to internet.