This book has been written for the for B.Sc. (honours), B Tech in Physics students of INDIAN Universities. Fundamentals of Magnetic Materials, Superconductivity, Nanoscience covers the topics of Magnetism, Magnetic Parameters,Classification of Magnetic Materials Classical Langevin's theory of Para magnetism, Determination of Paramagnetic Susceptibility by Gouy's Method. I the Superconductivity the topics coved , Temperature dependence of resistivity of a metal, Temperature dependence of resistivity of a superconductor, Meissner Effect, Type of superconductors, High Temperature Superconductors Applications of Superconductors. In the Nanoscience, Nanostructures, Properties of nanoparticle, Preparation (Synthesis of nanoparticles(NPs)),Bottom-up approach,Thin film vapour or Vapour phase deposition methods, Sol-gel methods, Top-down approach, Ball Milling, Lithography, Photolithography, Electron beam lithography,X-ray lithography, Characterizations of nanomaterials, X-ray diffraction (XRD), Raman Spectroscopy,Scanning Tunneling microscopy,Atomic Force Microscopy, Transmission Electron Microscopy, Graphene, Carbon nanotubes,Size dependent emission shift of photoluminescence.