What is the author's tone in Free to Choose: A Personal Statement by Milton Friedman?

The book is written in an objective presentation style. The subject matter is definitely the economics of Milton Friedman. What is good about the book is that the Friedmans don't just criticize. When they criticize some government program or action, they propose a solution and explain why. They explain what was wrong with the action and why it was wrong. They discuss the effects of the action or program. They then explain what should have been done and why. This approach is one of the most impressive features of the book.