If you are someone whose livelihood revolves around words, and especially if you are someone who needs to teach others how to improve their writing, this book is fascinating. I work as a copyeditor. Concepts 1, 2, and 3 I see regularly reflected in the authors I work with, and concepts 4 and 5 have given me food for thought in my own writing.
I first read this book in my first year of university and remember being impressed enough with it to buy my own copy years later and read it fresh. What most stood out to me when I first read it were the subconcepts "Writing Is a Knowledge-Making Activity," "Writing Is a Way of Enacting Disciplinarity," "Failure Can Be an Important Part of Writing Development," and "Revision Is Central to Developing Writing."
These subconcepts still interest me. (1) The idea that writing could by itself produce knowledge blew my mind. It made me more willing to throw ideas at the wall when brainstorming, plan vaguer outlines, and keep an open mind while jotting notes. (2) As a history major, I became more conscious about how my research papers differed from other work. What did it mean to write history, to think historically? (3 and 4) I tried to avoid being a first draft = final draft student when I could make time for revisions. Sometimes there was too much else going on. When I wrote my honor's thesis, however, I was able to do some self-reflection and get outside feedback to produce a much stronger result. Revision really does matter.
Different threshold concepts stand out now (I dare hope that means my writing has improved such that I am ready to learn new things): "Writing Expresses and Shares Meaning to Be Reconstructed by the Reader," "Texts Get Their Meaning from Other Texts," "Writing Enacts and Creates Identities and Ideologies," and "Assessment Is an Essential Component of Learning to Write."
I can see the influence of my current profession in what stood out to me. (1) When copyediting a work, I as a reader have to put myself in the head of the author sometimes. What did they mean here? How can I explain to an author that the text which makes sense in their head does not make sense to readers? (2) Books are so interrelational. I on-and-off edit academic books, and I know that a complete picture is out of my reach due to my unfamiliarity with the relevant scholarship. There's a whole world of meaning in groupings of books that as readers we can only understand by reading more and more interrelated texts. (3) Most books have a point to make, directly or indirectly. In making those points they reveal a host of assumptions and worldviews and personal experiences. A book is as much a relic of the society an author lives in as it is of themselves. (4) I must find a way to get more external feedback on my writing. Without that my writing is in an echo chamber, and I have no objective standard with which to assess my writing.