The concept of topology has become commonplace in various scientific fields. The next stage is to bring together the knowledge accumulated in these fields. This volume contains articles on experiments and theories in connection with topology, including wide-ranging fields such as materials science, superconductivity, charge density waves, superfluidity, optics, and field theory. The nearly 60 peer-reviewed papers include contributions by noted authors Michael V Berry and Roman W Jackiw. The book serves as an excellent reference for both researchers and graduate students.