After all, Charles IX is a series of books. In order to keep the target readers buying, Leo Phantom is very particular about pricing. For book pricing, the publishing society calculates according to the cost. A book like Charles IX, with a single page of about 200 pages and more than 50,000 words, accounts for one-third of the illustrations, and with additional products, the price is above 25 yuan. However, the final price in Charles IX is only 15 yuan.