This is a useful book.
Much of the subject matter is about law. Having recently completed a law degree at the age of 54, I am coming across some quite serious legal mistakes as I work through the text with my 15 year-old son. The section on Human Rights is a bit of a mess because it confuses the European Union with the Council of Europe.
My son likes the book but finds the jokes exasperating.
P.S. As we continue to work through this, I am finding more and more errors of substance. The referencing to legislation is particularly bad. Why are concepts like "satisfactory quality" changed to "decent quality"? There seems to be no reason to put a child-like spin on everything. A child will understand that "satisfactory" does not mean perfection. "Decent quality" has no application in law.