The Penguin Dictionary of Economics: Eighth Edition (Penguin Reference) is a good book to understand the various economic terminologies. The book contains explanations and references to latest terminologies used in economic discussions and references.The book contains explanations of terms like Euro to X-efficiency, acceleration principle to venture capital and Globalization to zero sum game. Terms like sub-prime and quantitative easing, which have become more in use after the global recession, have been explained. This edition of the book is up to date with terms that have come into use in the last four years. The explanations in the book are vivid and students of economics can find it very helpful for their reference. Professionals also refer to this book. The terms explained in this book help to understand economic discussions more clearly.