Abstract
The current chapter describes the basic concepts, selected physicochemical properties, and general structural supramolecular organization of ionic liquids. The concepts and importance of ion pairs, supramolecular aggregates, and the organization of neat ionic liquids are also addressed in this chapter. These ionic fluids have also been used as chiral inductors, and the basis for this application is also evaluated in this chapter. The main objectives of this opening chapter of the book are to highlight selected examples showcasing the significance of chiral ionic liquids and their applications in chemistry, particularly in promoting chiral transmission.