[generalizations]

This is what's done with sufficiently academic books in the hard sciences. They are so modular, that books are simply topics with each chapter written by a chosen author, and those authors will treat the chapters they've written similarly to papers they've had published.

I think if you dive deeper in to more rigorous nonfiction books you'll find that less time is spent on the 'pop' side of popsci literature. Which might be where you're encountering that fluff.