The book is a collection of columns, which barely qualifies as a book of "essays", which I normally consider lengthier and more complex. I have read many of Sowell's books and was quite familiar with his ideas, but had never seen most of these columns. Thus, I wanted to see his thoughts on various topics of recent years. No real surprises there, and he demonstrates the ability to pack a punch in a column.
The columns are organized into six parts: Economic, Racial, Political, Educational, Legal, and Social. My favorites tend to be on his core subjects of economics and race, especially those positions with libertarian orientation instead of straight conservatism. Familiar topics, such as affirmative action, slavery, and heavy-handed government, are all here. The author is also ready to take on hypocrites with little prompting.
I recommend the columns as an introduction to and summary of the ideas and breadth of Mr. Sowell. Personally, I actually prefer his books, where the scholarship has more opportunity to shine.