If you want to run the Go projects discussed in each chapter, you need to install Go. Next, you need to get your Go development environment running and start writing code.
Read  the TL;DR subsection of the How to build and run Go projects section of the Appendix. Go  to Chapter 1, Pure Functional Programming in Go in the book and start reading the Getting the source code section. Continue  reading on how to set up and run your first project.
Other Go resources include:
- Tour of Go (https://tour.golang.org/welcome/1)
- Go by Example (https://gobyexample.com/)
- Learning Go book (https://www.miek.nl/go/)
- Go language specification (https://golang.org/ref/spec)
When I think of other things to add, I'll put that information here: https://lexsheehan.blogspot.com/2017/11/what-you-need-for-this-book.html.
