FOSS book: programming essentials with Guile Scheme

From the preface:

Why this book?

Providing a concise start, a no-frills, opinionated intro to programming from first define to deploying an application on just 64 pages.

What is Scheme?

Scheme is a programming language — a Lisp — that follows the principle “design not by piling feature on top of feature, but by removing the weaknesses and restrictions that make additional features appear necessary”.