The following are 2 of my free books. They are under a Creative Commons Attribution License.
Real World Functional Programming in Dynamic Languages
Learn Functional Programming for real-world projects in dynamic languages. I ignore typing, Category Theory, and focus on the fundamentals that are actually useful to you. Each section gives you the basics, assuming you’re starting from no knowledge, so you can adopt what you want, where you want.
Serverless AWS Functional Programming
Learn how to deploy a data parsing process of microservices, a monolith API, and a website that is Enterprise friendly using AWS SAM with Functional Programming concepts.