This book provides basic principles of multivalent interactions found in biological systems as well as an up to date and thorough coverage in design concepts, syntheses, and biological activities of multivalent molecules. It contains practical examples of synthetic multivalent molecules in chemistry, biology, and medicine. It can be used as both a textbook for students and a reference book for libraries and professionals. It includes detailed case studies and fills a void in current literature through its devotion solely to multivalent molecules.