people often make the distinction between "popular" science, and science published in specialist journal articles. If you go to the extremes, then the distinction is clear: A documentary by David Attonborough on wildlife is clearly popular science, and a journal article in Nature about "Mechanisms for the Decrease of Brain Serotonin" is clearly not.
But somewhere in the middle, the boundary starts to blur, and I am looking for words to more accurately talk about this "middle ground" between popular science writing and science writing for scientists.
For example, what I have in mind is that a book like "The selfish gene" by Richard Dawkins, is readable by a general audience and has become quite popular among interested non-scientists (does not contain specialist jargon, or complex math that requires long preparatory study), but nevertheless, Dawkins introduced original ideas and an original perspective on genetics and evolution. Even experienced evolutionary biologists could learn from reading his book.
Another example (but a different type) is "Thinking fast and slow" by Kahnman & Tversky. This book is readable by a general audience, but it is also not very far from a kind of introductory textbook on behavioral economics.
My question is: I'm looking for words that allow you to refer to these kinds of books that are not hardcore science journal articles, but also not really purely popular science. Any words that are related to this are welcome, even if they don't exactly capture these examples.