Understanding Paper Sizing (US & International)

My favorite Paper Sizing Guide Webpage:
https://papersizes.io/

VIDEOS:
Paper Weight Explained:    • Art Paper Weights Explained (lb vs gs...  
Paper Ingredients Explained:    • Everything Watercolor Paper (Ingredie...  

RESOURCES:
ISO- International Organization For Standardization: https://www.iso.org/home.html
ANSI- American National Standards Institute: https://www.ansi.org/
ALA- American Library Association: https://www.ala.org/

ARTICLES:
Paper Sizes: https://en.wikipedia.org/wiki/Paper_size
Book Sizes: https://en.wikipedia.org/wiki/Book_size
Transitional Sizes: https://paper-size.com/size/f5-transi...
British Imperial Paper Sizes: https://www.papersizes.org/old-imperi...
Where to Buy Imperial Paper: https://www.jamescropper.com/
US Paper Sizes: https://coastalcreative.com/standard-...
US Paper History:   / a4-vs-letter-why-size-matters  

*FREE* paper sizing printable: http://www.pencilandpigment.com/2017/...

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