This book on click reactions to focus on organic synthesis, this reference work describes the click concept and underlying mechanisms as well as the main applications in various fields. As such, the chapters cover green chemical synthesis, metal-free click reactions, synthesis of pharmaceuticals, peptides, carbohydrates, DNA, macrocycles, dendrimers, polymers, and supramolecular architectures. By filling a gap in the market, this is the ultimate reference for synthetic chemists in academia and industry aiming for a fast and simple design and synthesis of novel compounds with useful properties.