This contribution to the American Chemical Society Symposium Series presents a collection of chapters focused on several critical issues involving endocrine-disrupting chemicals (EDCs). Some of these issues include the sources of EDCs, their presence in the environment, strategies for screening by the use of bioassays, and the quantitative measurement and identification of EDCs in various environmental media. By intention, this book is not comprehensive by any means. For example, there is little discussion of the possible toxic effects on exposed organisms. Such have been presented in great detail elsewhere and would only dilute the important focus on analytical approaches. For the most part, the authors do a very credible job in succinctly presenting the historical development of the concerns, the important questions, proposed and ongoing research approaches, and, to some degree, the possible significance of these in risk assessment and regulatory policies. The initial chapter nicely presents in a very straightforward manner most of the critical policy issues …