In this era of globalization and the world-wide web, the ability to communicate accurately and effectively using English idioms is more important than ever. This week-by-week calendar for systematically studying these idiomatic expressions is designed with the above goal in mind. Some unique features of this book are as follows: over 3,200 idiomatic expressions in American English; easy to understand, week-by-week methodology in which to learn idioms; unique classification system of 32 functional categories to help in understanding idioms; concise and simple definitions and explanations in plain, everyday English; lively and authentic illustrations of the language; and a thorough index for easy reference.