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  • An image you find on the Internet was taken or made by someone and that person should be given credit.
  • Because an image exists in a fixed form (unlike an idea), it is protected by copyright.
  • Images don't need a copyright symbol (a "c" inside a circle) to be protected by copyright.
  • Your best bet is to search for images the author has given permission for others to use (under a Creative Commons license) and to credit the author.

If you are using copyrighted images for your presentation, it can't hurt to put in a disclaimer statement like: "This educational [presentation, poster, slideshow, etc.] contains images protected by copyright law. When possible, images were used as permitted through Creative Commons licenses or available in the public domain."

Here are some sites to use when looking for images:
Here are some sites to help you document your sources:
Here's an online photograph citation example from the Library of Congress's site:

Last name, First name Middle initial. Title of photograph. Original date of photograph. Title of Online
. Date of posting. Current location of original document. Database. Sponsoring organization.     Day Month Year of access <electronic address>.


O'Sullivan, Timothy H. Incidents of the War. c1865. Selected Civil War Photographs from the Library of
, 1861-1865. 12 Jan. 2000. American Memory. Lib. of Congress. 2 Aug. 2005            

Below are examples of how you can briefly credit an image source in your school work: