This book provides the scientific community for the very first time, a comprehensive review on cucurbit[n]uril (CB[n], n = 510), a new family of molecular hosts, which has gained much attention in the new millennium for its exceptional molecular recognition ability. This pioneering publication starts with a brief overview on the history of CBs, followed by six chapters which cover the synthesis, structures, recognition properties of CBs; supramolecular assemblies built with CBs; applications of CBs; functionalization of CBs; applications of functionalized CBs; and CBs analogues and congeners. Full and up-to-date coverage of all the key issues in the area of CB chemistry are also provided, as are fresh perspectives.