Organoselenium chemistry is proving increasingly valuable to the synthetic organic chemist. Selenium residues are easily introduced into organic molecules, they serve to effect a variety of useful transformations, and are easily removed at the end of the sequence. These processes are oftencharacterized by high chemo- regio- and stereoselectivity. Recent enantioselective variations of selenium-mediated reactions are further extending their scope and utility. The use of organoselenium compounds in organic conductors is another area of intense current interest. Organoselenium Chemistry- A Practical Approach is written by an international group of experts in the field.