The PTC library databases listed below offer access to high quality images attached to articles and videos, such as documentaries and interviews. Try searching keywords such as advertising, graphic design, logo creation, and play around with the filters. Alternatively, you could use keywords to search for examples of historic advertisements for large brands like Coca-Cola or Nintendo.
For example, the following WPA posters were sponsored by the Federal Arts Project in Chicago, IL, 1936-1941. They are from the Library of Congress' Free to Use and Reuse: Libraries collection.

Check out the below interview series Conversations with Giants, featuring photographer Robert Whitman, as he discusses the relationship between photography and advertising. He was the first photographer to photograph the musician Prince.
Access:
This video should play automatically if you are signed into your library account on campus. If you cannot view the video on campus, make sure to sign into your library account. If you are off campus, sign in with your P number and 6 digit date of birth.