This volume is based on the National Academy of Sciences' colloquium entitled "Chemical Ecology: The Chemistry of Biotic Interaction." The articles appearing in these pages were contributed by speakers at the colloquium. Any opinions, findings, conclusions, or recommendations expressed in this volume are those of the authors and do not necessarily reflect the views of the National Academy of Sciences.

If crafts are big, then clay is colossal. From pins and pendants to bracelets, buttons, and embellishments, crafters of all ages are embracing the creativity that polymer clay inspires. This encyclopedic book by renowned expert Lisa Pavelka includes the latest techniques, handy tips, and trade secrets. Pavelka presents a sweeping overview of materials, how-to fundamentals, and construction techniques. She also introduces six original projects with complete instructions showing readers how to make pendants, curio boxes, a necklace, and a bracelet. Clear, concise, and comprehensive, this is an essential addition to any crafter's library, no matter his or her skill level. For even more inspiration, this indispensable reference features a gallery of 50 original projects by Pavelka and other talented polymer clay designers.