Who this book is for

This book should appeal to two groups:

This book should appeal to two groups:

NON-Programmers:  (Focus on the 110+ page Category Theory chapter.) If you are a…

 • K-12 math teacher and want to see why what you are teaching matters or

 • Math teacher and want to see how what you are teaching relates to other branches of mathematics or

 • Student in law school and want to understand what you will be doing when you plead your client’s case or

 • Soccer enthusiast and like math or

 • Person interested in learning Category Theory or

 • Lover of The Lambda Calculus and want to see it illustrated with diagrams, pictures and Go code or

 • Manager of software projects and want to see a better correspondence between requirement gathering, implementation and testing or

 • C-level executive and want to understand what motivates and excites your IT staff or

Programmers:  If you are a…

 • Software enthusiast and want to learn Functional Programming or

 • Software tester and want to see a better correspondence between requirement gathering, implementation and testing or

 • Software architect and want to understand how to use FP or

 • Go developer and like soccer or

 • Go developer and want to implement your business use case programming tasks with more expressive code or

 • Go developer and want to understand Generics or

 • Java developer and would like to understand why we say, "Less is more." or

 • YOUR_LANGUAGE_HERE developer that knows FP and want to transfer your skills to Go or

 • Go developer looking for a better way to build data transformation pipelines or

 • Go developer and would like to see a viable way to write less code,  i.e., fewer if err != nil blocks or

 • Experienced Go developer and want to learn Functional Programming or add some tools to your toolbox or

 • Involved in software development and want to understand any of the terms below

… as long as you any of the above and willing to open your mind this book is for you.

If you are a Go developer looking for working code, with line-by-line explanations for any of the following…

• Benchmark testing

• Concurrency (Goroutines/Channels)

• Currying

• Data transformation pipeline

• Decorator Pattern

• Dependency Injection

• Duck typing

• Embedding Interfaces

• Error handler

• Function composition

• Funcitonal parameters

• Functors

• Generics via code generation

• Hollywood Principle

• Interface driven development

• I18N (language translation)

• IoC

• Lambda expressions in Go

• Layered application framework

• Log handler

• Monads

• Monoids

• Observer Pattern

• Partial application

• Pipeline to process credit card payments

• Recursion

• Reduce function to sum invoice totals

• Solve circular dependency errors

• Table driven http API test framework

• Type Class

• Upload/download files to/from Google Cloud Buckets

• Y-Combinator

…this book is for you.