In a preceding book titled 'Introduction to Marcus Theory of Electron Transfer Reactions' the reader was introduced to the Marcus Theory of Electron Transfer Reactions. There, Marcus' papers from 1956 to 1986 were considered. In the present book, oral interviews with Professor Marcus are reported on his papers published from 1987 to the present. These interviews with Marcus' notes, comments and remarks on his papers and those of his coworkers are an invaluable supplement to his articles for students and scholars in the field of electron transfer reactions.