If you buy a book in a bookstore and find a better book, you can consider returning it. Normally, bookstores had a return policy. You could check the store policy when you bought it. Some bookstores may allow a full refund, some bookstores may require a refund within a certain period of time, and some bookstores may require the book to be returned to the bookstore. You can ask the shop assistant about the return policy and make sure you understand any restrictions or conditions in the policy. If you did not ask about the return policy at the time of purchase, you can contact the bookstore to understand the policy and requirements before returning the goods. If you decide to return the book, you need to send a photo of the new book to the bookstore so that they can confirm that they have received the new book. Make sure to keep the book for a period of time before returning it to the bookstore. If you didn't ask about the return policy at the time of purchase or are not sure if a return is possible, please study the bookstore's policy carefully before purchasing and contact the bookstore or staff for more information if necessary.