A preview-review of The Six Secrets of Intelligence by Craig Adams, due out late 2019, gives away the "secrets":

• deduction
• induction
• analogy
• reality
• evidence
• meaning

... all obviously important, albeit as listed neither as orthogonal nor as complete as one might hope. Online sample text suggests a chatty, preachy book that begins with Aristotle and educational history, then turns to a discussion of the "Six Secrets" with examples from current events, followed by sections on psychology, philosophy, education, and society. Reviewer Arlene Holmes-Henderson rates it "... light on cognitive science, but it does provide a toolkit for analysing political debates and philosophical discussions ...".

Good enough — but why not take the time to provide a proper summary, a solid structure with bottom-line-up-front (BLUF) takeaways? And how about a well-designed framework for the "Secrets", making their interrelationships and dependencies and hierarchical relationships clear, memorable, and useful?

"Thinking Better" techniques should be applied to teach better thinking. As category theorist Eugenia Cheng notes in a mathematical context:

To study the world abstractly you use science; to study science abstractly you use math; to study math abstractly you use category theory. Each step is a further level of abstraction. But to study category theory abstractly you use category theory.

Ditto mind and metacognition ...

(cf Mental Bandwidth Boosters (1999-06-26), Characteristics of Superforecasters (2015-11-21), Think Better - Three Keys (2019-06-05), More Meta (2019-08-31), ...) - ^z - 2019-10-10