This book is based on the George Fisher Baker Lecture given by Jean-Michel Saveant at Cornell University in Fall 2002. The first book focusing on molecular electrochemistry Relates to other fields, including photochemistry and biochemistry Outlines clearly the connection between concepts, experimental illustrations, proofs and supporting methods Appendixes to provide rigorous demonstrations to prevent an overload of algebra in the main text Applications-oriented, focused on analyzing the results obtained rather than the methodology