A Simple Model for Writing a Nonfiction Book
There is in fact a Goldilocks test for the content your book needs.
Read enough Amazon reviews of nonfiction texts, and you'll eventually see one that vehemently expresses the following sentiment:
The book should have been a blog post.
There's plenty of validity in many of these claims—and even some posts that specifically address them. An author needlessly stretches a simple idea into a fluffy, full-length book. Typical tropes with these titles include:
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