To learn more about World Expos
Online resources
Access my World Expo list on WorldCat
See a list of World Expos and their categories on Tableau Public
Books
Galopin, Marcel. 1997. Les expositions internationales au XXe siècle et le Bureau International des Expositions. L'Harmattan. Paris.
Greenhalgh, Paul. 2011. Fair World: A history of world's fairs and expositions from London to Shanghai 1851-2010. Papadakis. Berhshire.
Jackson, Anna. 2010. Expo: International expositions 1851-2010. V&A Publishing. London.
Websites
Bureau International des Expositions (BIE)
Expo Elements, by Nils Hohnwald
World Expo Consultant, by Laurent Antoine LeMog
ExpoMuseum, by Urso Chappell
World's Fairs, by World's Fair, Inc.
World Expos Experts and institutions On Twitter
Follow the #WorldExpos conversation On Twitter
These are some resources I have found valuable to understand different aspects of World Expos. I do not necessarily agree with what other authors say, but I recommend the resource because it shows different perspectives to a topic.
This is not an exhaustive list and I would like to keep this section as simple as possible. However, I am building a downloadable, more complete list. Please let me know of any valuable resources that should be included in the list.