What three conditions would tell you if you should seek copyright permission?

Answer 1

If you wish to use materials...

1. that are protected by copyright
2. that are not your intellectual property
3. for which you do not have an exemption in the law

...you would need permission.

Answer 2

1. If you plan to use someone else's copyrighted work in your own work, such as using a section of a book or a piece of artwork, you should seek copyright permission.

2. If you plan to reproduce and distribute someone else's copyrighted work, such as publishing it or making copies to sell, you should seek copyright permission.

3. If your use of someone else's copyrighted work falls outside of fair use guidelines, which include factors such as the purpose and character of your use, the nature of the copyrighted work, the amount and substantiality of the portion used, and the effect of your use on the potential market for the copyrighted work, you should seek copyright permission.