https://www.juliepeasley.com/post/9-may-2024
Easily Confused Charts: VENN vs EULER diagrams
May 9, 2024 - Comparing a Venn diagram to an Euler diagram. They are easily confused. An Euler diagram doesn't allow empty relationships like a Venn does.
euler diagramseasilyconfusedchartsvenn
https://en.wikiversity.org/wiki/Studies_of_Euler_diagrams/filtrates
Studies of Euler diagrams/filtrates - Wikiversity
euler diagramsstudiesfiltrateswikiversity