Dr. Michael Gray is an accomplished academic and a teacher of teachers. If you read Unforgettable: Enabling Deep and Durable learning, then you will see what I mean.
The book is written to to help teachers become "Clear Thinking Teacher that is a teacher who analyzes her thinking within her academic discipline ignorer to foster thinking itself in her students." (xiii, 3)
This book is for educators whom Gray assumes has mastered their disciplines. It seems to me he speaks primarily to college and university professors. This should not dissuade the rest of us from reading this book. Whatever career path we are on, or however clear or unclear our thinking is we must learn to think and express our thoughts more clearly than we do presently. If that is your goal then pick up this book and read it.
That is not to say this is an easy read. It is above my level, but when one is committed to excellence regardless of the field, he/she must read beyond what they currently understand.
Gray takes 9 chapters to help the reader reconstruct his thought process so she is able to see the flaws in her logic until she becomes an expert (1-3), clarify her ideas so that she may communicate them to others (4-5), and make a plan for her students (6). The teacher must want her students to flourish (7), so she must draw out what the students know by asking questions not telling the students what they should know. (8) All of this must be assessed in a way that shows love and compassion. (9)
Dr. Gray has done the academic world a service by writing this book if only they will then the call that Augustine did, "Take up and read".