This guide offers hints and tips to help you find images, as well as general rules for using them. Images and photographs are intellectual property. Reuse of images requires an understanding of copyright, attribution and citation.
Explore these large image collections which contain millions of images on many subjects.
These image databases include images that can be freely reused. Images are made available under creative commons licenses, or because they are in the public domain. Learn more about rights, ownership and attribution.