Copyright is a form of legal protection that allows authors, photographers, composers, and other creators to control some reproduction and distribution of their work.
There are several different rights that come along with copyright. In general, copyright holders have the exclusive right to do and to authorize others to do the following 5 Basic Rights:
These rights have exceptions and limitations, including the "fair use" provisions, which allows certain uses without permission of the copyright holder. (from U of Michigan)
Any content you create in a tangible format! Not only scholarly work, but even your to-do list at home, your monthly report, your email messages, your child’s art work or notes you take at meetings and presentations.
There are many things that are not protected by copyright, including:
No! Copyright protection is automatic, but if you wish, you can register with the U.S. Copyright Office. You also may provide a copyright notice, for example: © 2005 Trisha L. Davis
In general, copyright registration is a legal formality intended to make a public record of the basic facts of a particular copyright. However, registration is not a condition of copyright protection. Even though registration is not a requirement for protection, the copyright law provides several inducements or advantages to encourage copyright owners to make registration. Among these advantages are the following:
Registration may be made at any time within the life of the copyright. Unlike the law before 1978, when a work has been registered in unpublished form, it is not necessary to make another registration when the work becomes published, although the copyright owner may register the published edition, if desired. (from US copyright office)
The term for copyright protection has changed over the years. Currently, copyright lasts from the moment a work is created until 70 years after the death of the author, except for works produced by a company/employer in which case the copyright lasts 95 years from the date of publication. The resources listed below give a more complete view of the terms for copyrighted materials
Copyright has expired for works published in the United States before 1923, which means they are in the public domain. You are free to use or reproduce works in the public domain however you want. In addition, some works published between 1923 and 1963 may also be in the public domain, but this can only be determined on a case-by-case basis. All works created after 1963 are under copyright, except for work produced by the U.S. government, and state constitutions and laws. (from U of Michigan)