Education and Communications Can I legally resell books? Can I legally resell books? Here's the thing. Copying a book is illegal. But buying or selling a used book is not illegal, no matter what kind of book it is. There's no copyright law against reselling or purchasing used. Related Posts:How much does it cost to copyright a book online?How to patent a clothing line: everything you need to knowThe Scribes are defined in the Bible by the word SCRIBE.How can I legally resell my product?