Christopher Alexander (of “A Pattern Language” fame) wrote at least one of his other books, “The Timeless Way of Building” in this way with bold headings being

Christopher Alexander (of “A Pattern Language” fame) wrote at least one of his other books, “The Timeless Way of Building” in this way with bold headings being sufficient to grasp all the key points of the book, and non-bolded paragraphs under the headings to provide the full detail as needed to suit the reader.