Design Timelines
Designhistory.org (Western design only)
33 famous graphic design companies from around the globe
For cross-cultural Street Art from my Illustration course see my post on that blog: Street Art
African graphic design
Islamic Design
Japanese design
Cross between Zen minimalism, off-centre balance and Pokemon playfulness with very crowded collage.
https://designschool.canva.com/blog/japanese-design/
For more on my study of Japanese design, art and illustration see my post on my Illustration blog: Japanese Styles
Latin America
EYE Magazine: http://www.eyemagazine.com/feature/article/beyond-latin
Western Design
Wine Bottles from different countries
Signs from London
Expressionism
EYE Magazine from Greece: http://www.eyemagazine.com/blog/post/signs-of-a-city