728x90 전자책판매1 전자책 판매 (E-book sales) English and Korean ver. What is e-book sales and what are its features, advantages and disadvantages? Definition: E-book sales refer to the activity of producing and selling books in a digital format. E-books are books that can be read in digital form instead of paper books. E-book sales provide a new revenue stream for the publishing industry and copyright owners, and provide portability and convenience for readers. F.. 2023. 11. 8. 이전 1 다음 728x90