This free course was written by David G. Robertson.
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Course image: © Godong/Contributor; Getty Images
Section 2 images: Left: U.S. Embassy and Consulates in Canada https://creativecommons.org/publicdomain/mark/1.0/; Right: Picture taken by Jonathan McIntosh; https://creativecommons.org/licenses/by/2.0/deed.en
Section 3 image: © FatCamera; Getty Images
Conclusion image: © Dan Kitwood/Staff; Getty Images
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