Category Theory for Programmers

Categories for Programmers: Functoriality

Functors. Categories for Programmers by Bartosz Milewski

Simple Algebraic Data Types. Categories for Programmers by Bartosz Milewski

Categories for Programmers: Products and Coproducts, Bartosz Milewski

Categories for Programmers: Kleisli Categories, by Bartosz Milewski

Categories Great and Small -- Bartosz Milewski: Category Theory for Programmers

Who ordered memory fences on an x86?

Types and Functions (From Bartosz Milewski's Category theory for Programmers)

Category: The Essence of Programming -- Category Theory for Programmers

The Functional Revolution in C++