https://matheusfacure.github.io/python-causality-handbook/landing-page.html
https://www.yuan-meng.com/posts/causality/causality/
https://yanirseroussi.com/causal-inference-resources/
https://prachub.com/interview-questions/design-an-a-b-test-with-causal-inference
Causal Inference from Observational Data
Causal Inference from Natural Experiments