Watching the world through statistics

ECDI has been making reference products—books, CDs, custom databases, and online offerings—for more than 25 years. Our work involves doing research and analysis, writing, producing graphics, working with statistics, data processing, editing, and typesetting. Learn more about us by exploring this site. If you have needs in any of these areas, please contact us and tell us about your project. We welcome the chance to be of service.

Writing         Proofing         Data Processing         Research