David Smith's Free Lunch is one of the latest additions to my small collection of popular economics book (which is nearing 10 at the time of this writing). In the introduction, the author states:
At one level the book is an aid to reading newspapers, particularly the financial pages, and understanding (and being able to see through) the economic claims and counter-claims of politicians.

True to the stated objective, Free Lunch places more emphasis on macroeconomics -- it does cover some microeconomics, but you'll come across a lot more pages discussing stuff like effect of taxes, government spending, and so on. Now the choice of topics might not be as interesting as those you'd find in other books I've written about, but overall, it's actually quite engaging. Throughout the book Smith also covers development of important economic thoughts (which shapes the world's political economy landscape), and the lives of the important economists behind them. A number of influential economists, such as Adam Smith, Karl Marx, John Maynard Keynes, David Ricardo, and Milton Friedman are introduced, along with their most important works and historical context that inspired them. These parts of the book are highly informative, and make an interesting reading.
Probably due to his background as the economics editor of The Sunday Times, Smith is able to provide examples from events in recent history that illustrate the concepts being discussed. However, him being British, most of the examples used in this book are from Britain's economy. At one point, Smith relates the discussion on monopoly to privatization of British gas, telecommunications, and electricity firms. In another part, he presents a summary of British economic policies from the 1970s, as well as the underlying reasons. To me, this is a kind of double-edged sword. The choice of examples would surely help British readers. On the other hand, the book is sold worldwide, and readers from other parts of the world (such as myself) would find the examples less helpful.
Anyway, if I were to suggest one thing to improve in Free Lunch, it wouldn't be the content nor examples, but the writing style. The book feels too verbose at times, especially in the first chapters (which cover basic concepts like supply and demand). On the other hand, in the last chapters, the book kind of jumps around between different topics. I think inclusion of some diagrams could also help. The author decides to avoid use of formulas and diagrams to make the content more accessible to general audience, however, sometimes some simple diagram can save paragraphs worth of explanation. As the saying goes, a picture is worth a thousand words.
In conclusion, I find Free Lunch to be worth buying. It'd be better if it were more concise, but as it is, the book can already be a useful guide to help non-economists like myself to understand how things in “the economy” interact, and how changes in government policies can affect them. As a bonus, it also provides an interesting, if brief, overview of history of modern economic thoughts.

