Why this book?
I love that the dedication is to the A to Z Challenge bloggers of 2014. (I was one of them!) Here's a well-written and comprehensive reference guide. There's a strong author voice and a great amount of information. It covers the importance of including diverse characters. I recommend The A-Zs of Worldbuilding: Building a Fictional World From Scratch to writers building a fictional world, and to writers using an unfamiliar setting. A necessary reference tool for authors.
Why should I read it?
What is this book about?
Worldbuilding is the ultimate act of creation for speculative fiction writers, but how exactly do you worldbuild? You ask 'what if' and use each answer as a springboard to more questions and answers about your fictional world.
In The A-Zs of Worldbuilding, that ‘what if’ process is broken down into 26 themed chapters, covering topics ranging from architecture to zoology. Each chapter includes a corresponding set of guided exercises to help you find the ‘what if’ questions relevant to your story’s world.
Fair warning, though: worldbuilding is addictive. Once you get started, you might never put your pen down again.