回複：我犯法了嗎？

Under the copyright act, the copyright owner has the right to control the sale and distribution of the original and all copies or derivative works, including licensed copies. However, this right extends only to the first sale of such works. The owner does not have the right to limit resale by purchasers of her works except in certain limited circumstances.

Did you specify that the book was used? If not, the company might think you are selling new original books, which is a violation of copyright law. You can call the company, explaining your situation. I don't think you would have any problem.