This is a book that's a highly selective dictionary, defined and curated according to the author, a public intellectual of the highest order in my humble opinion.
I very often re-read parts and refer to this very useful book...it is indeed a "companion". Some definitions are short pithy one-liners...others a though-provoking paragraph or two...and a few are scholarly short essays.
Capitalism, corporatism...free speech, free trade...so many topical issues of it's day that are still current and pressing issues today...all are defined with sage insight, honesty and wit.
Another installment please, Mr. Saul.