The book's primary thrust is the history leading to the fact that we do not normally use the metric system in the U. S. I must say that it makes a good case for an idea that I'd never run across before: that this is primarily because the French, in devising the definition of the meter, departed from an idea that many people, including Thomas Jefferson, thought would give the most internationally reproducible standard. Reading this book, it really seems he has his facts right, and his argument is convincing.
I found that the book clarified a number of points that I have wondered about.
One negative thing is that his appendix in the end has some (probably typographical) errors: one table shows 101, 102, etc. for what slould really be 10 with exponents 1, 2, etc.) and in several other tables, "grains" becomes "gains."
Did you every wonder why the US didn't adopt the metric system when it was first proposed by France? Well (like many other things) the story I was taught in school was short, dull and misleading.
The real story is full of action and adventure.
The action involves a secret last meeting of Louis XVI with his scientific advisors the night he attempted escape, a man with a passion for collecting rare flowers, a hurricane in the Caribbean, a treacherous French governor, pirates, an Indian massacre of US Army troops on the frontier, and the struggles between Thomas Jefferson and real estate speculators!