does it cost much, or at all to copyright a book?

Answer 1

I believe you can mail yourself a copy of your own work, and never open it. That way, you have a legally dated envelope with your work inside, in case anyone says they came up with the idea long before you did.

Answer 2

Material is "copyrighted" when you write it. You can pay for copyright, but, it is not required.

Go to the copyright website: copyright.gov
all of the information you need is on the website.

Answer 3

To register a copyright the fees are about $10. At least that's what I paid to register a copyright for a photo.

Answer 4

Contrary to what the copyright websites tell you, all you need to do to legally copyright your material is add the little "c" in the circle and then sign and date it. You really don't need to spend anything.

Answer 5

All of the above answers are correct.
It is yours when you create it.
It is yours if you send it say to a friend, lawyer, or yourself and don't open the package but keep one copy outside for to begin your case.
You can register it.

Answer 6

to copyright something, just mail a copy of the book to yourself and dont open it. this will prove that it is your original work.