<P><STRONG><EM>Covers the State of the Art in Superfluidity and Superconductivity</EM></STRONG></P><EM><br/><br/><P></EM><STRONG>Superfluid States of Matter</STRONG> addresses the phenomenon of superfluidity/superconductivity through an emergent, topologically protected constant of motion and covers topics developed over the past 20 years. The approach is based on the idea of separating universal classical-field superfluid properties of matter from the underlying system¿s ¿quanta.¿ The text begins by deriving the general physical principles behind superfluidity/superconductivity within the classical-field framework and provides a deep understanding of all key aspects in terms of the dynamics and statistics of a classical-field system.</P><br/><br/><P>It proceeds by explaining how this framework emerges in realistic quantum systems, with examples that include liquid helium, high-temperature superconductors, ultra-cold atomic bosons and fermions, and nuclear matter. The book also offers