The cost of publishing a book depends on many factors, such as the type of book, pricing, sales, and publishing company. Usually, the cost of publishing a book may include printing, publishing, distribution, and publicity costs. These costs may include the production, publishing, editing, proofreading, and distribution of the book. However, if a book could be sold successfully, it might be able to make a lot of money. Generally speaking, the legal sales channels of a book included bookstores, online bookstores, online stores such as Amazon, and other forms of sales channels such as second-hand bookstores and distribution. If enough copies were sold, the profit from a book could be very high and could even reach hundreds or thousands of dollars. However, this is only a rough estimate. The actual profit depends on many other factors such as market demand, competition, pricing strategy, marketing strategy, etc. Therefore, it was uncertain whether publishing a book could make money. It needed to be evaluated according to the specific situation.