To open a bookstore, you need to find a sufficient source of books. You can refer to the following methods: 1 Look for information in the school or community library to ask if there are books that need to be transferred or sold. 2. Find out from the locals if they have any books that are about to be published or if they have any books that you can recommend. 3. Find second-hand or discounted books through online bookstore platforms such as Amazon, Taobao, etc. 4 Contact your local bookstore or second-hand bookstore to ask if there are any books that you need to transfer or sell. 5. Attend a local literary festival or book fair to get to know the locals and see if they have any upcoming books or books that they can recommend. The above are some ways to find the source of the book. I hope it will be helpful.