How to Lie with Maps reviews the various ways maps can deceive percipients who don’t interpret maps carefully. As stated in chapter one, this book is not meant to help mischievous cartographers. Rather, its purpose is to encourage the general public to be more critical and selective in their map interpretation. The book includes twelve main chapters that explain general categories of cartographic deception. Due to this large amount of specific ideas in the book, it is easiest to divide a critique of its content into a few main parts: positive aspects, negative aspects, and applications.
POSITIVE ASPECTS
The book starts off with an introduction to scales, projections, and how maps are generally created. This helps the average reader understand the tools used by cartographers to produce maps, thus helping to convey the inner workings.
The general organization of the book is also helpful. Despite a lot of somewhat disconnected information, the book is generally sectioned off by the purpose of the map or a design principle. This connotes to the reader that how a map is used is just as important as the technique used to accomplish it.
Third, How to Lie with Maps is packed full of rich nuggets of insight. One example of this comes from the maps generally used in classrooms. Green designates areas of low elevation, brown medium heights, and white denotes high elevations. Although these are useful ways of depicting information, green is often thought to show lush vegetation, brown to show deserted areas, and white the top of a snow-capped mountain. Of course, these correlations are not always so.
NEGATIVE ASPECTS
The first noticeably problematic aspect of the book is its difficult sentence structure. Long sentences and difficult wording are more consistent with scholarly writings and don’t match the intended audience—that is, the general public. Because of this, reading a sentence twice sometimes did not yield a full understanding of what the author was trying to convey.
Dated at 1996, How to Lie with Maps is also not current with today’s modern, connected world. While the book does touch on the use of electronics to create customized, dynamic maps, it ignores the revolution of the internet and cellular technologies. Important advances such as cached map services, cloud computing, and even crowd sourcing has created a whole new set of issues in the reliability of maps and how they are used.
Third, many of the visualizations are poorly presented. Words in the text describe areas that are not easily seen without diligent searching of the map area, such as the maps on pages 50 and 91, which describe areas encircled by a mass of other points of information. Another specific example of this issue appears on page 31, where a small-scale map is blown up to be compared with its large-scale equivalent. While this juxtaposition is helpful, the two images need labels or such to help show the comparison.
APPLICATIONS
Despite these drawbacks, the book is an incredibly useful tool for many working GIS professionals as well as the general public. This book comes with high recommendations.
Those working specifically in GIS, for example, can use its principles to effectively display data. First, GIS usually yields a lot of data, which can be hard to present effectively. This book helps with design principles to overcome that challenge. Second, those data are often used to make a point or persuade someone. A developer, for instance, might want to persuade a city board to approve his new plan. On the other side of this point, this book helps a city planner see where a cartographer may be trying to present more falsehoods than are necessary on a map.
Other persuasive fields can use these principles. Business GIS, for instance, involves a lot of advertising. Maps can be a means of persuading a business board to put a new facility somewhere or withdraw from a certain market.
In short, any geographer, as well as common person, can greatly benefit from the information in this book. It truly is a book for anyone wary of cartographic falsehood.