Alicyclic chemistry is the study of non- aromatic organic compounds made up of one or more carbocyclic rings. Such compounds which range from simple ring systems to complex bridged and polycyclic structures provide a framework for the understanding of many concepts which underlie organicchemistry. It is the intention of this book to provide an overview of the behaviour of alicyclic compounds in the depth required for an undergraduate chemistry course. The topics covered include a discussion of the stability and conformational behaviour of carbocyclic ring systems, and the factorswhich control the choice of synthetic methods to, and reactivity of such compounds. Many aspects of alicyclic chemistry provide an important framework for a proper understanding of the behaviour of organic molecules in general and are key components of any first degree-level chemistry course. Thepresent text aims to provide an up-to-date discussion of this important area of organic chemistry (which also has implications in biological and medicinal chemistry) with particular emphasis on the understanding of molecular shape (using modern computer graphics) and its role in controllingmolecular behaviour.