Is it illegal to pretend that something is copyrighted and already published?

It is not necessarily illegal to pretend that something is copyrighted and already published, as long as you are not using that claim to deceive or defraud others. However, falsely claiming copyright on someone else's work or misrepresenting the publication status of a work could potentially lead to legal issues, such as accusations of plagiarism or copyright infringement. It is always best to be honest and transparent about the originality and ownership of your work.

Could you say that again but simpler?

Sure! It's not against the law to say something is copyrighted or already published if it's not. But it's not a good idea to lie about it because it could cause problems like being accused of copying someone else's work. It's best to be honest about where your work comes from.

Okay, like, let's say I write a book series based on another book but don't share it with anyone else but my family. Is that okay?

If you write a book series based on another book for your own personal enjoyment or to share only with your family, it is generally not illegal. However, if you were to try to publish or distribute the work without permission from the original author or copyright holder, that could be considered copyright infringement. It's important to respect the intellectual property rights of others and obtain proper authorization if you plan to share or profit from your derivative work.

Thank you! You really helped me!"

You're welcome! I'm glad I could help. If you have any more questions, feel free to ask.