Thomas Piketty's Capital in the Twenty-First Century reached the top of most best-seller lists last year shortly after it was released. Nonetheless, few people actually read the book. Yet reviewers have agreed that the book is important because it touches on one of the major problems facing the US economy, the UK economy and many developed nations: rising income and wealth inequality. It also provides an explanation of the problem and a policy solution: a global wealth tax.

This book is intended to do three things. First, it provides a summary of the argument of...

Thomas Piketty's Capital in the Twenty-First Century reached the top of most best-seller lists last year shortly after it was released. Nonetheless, few people actually read the book. Yet reviewers have agreed that the book is important because it touches on one of the major problems facing the US economy, the UK economy and many developed nations: rising income and wealth inequality. It also provides an explanation of the problem and a policy solution: a global wealth tax.

This book is intended to do three things. First, it provides a summary of the argument of...