Book Publishing refers to the process of creating and producing printed or digital copies of a book, which is then sold or distributed to readers. This involves several stages such as editing, designing, printing (if it's a physical book), marketing, distribution, and sales. The publisher typically pays for these costs upfront and hopes to make a profit by selling enough copies of the book to cover their expenses. Book publishing can be done through traditional methods or self-publishing, depending on the author’s preference and resources.