The subject of Magnetic Resonance which encompasses the study of systems with magnetic nuclei (NMR) and those with unpaired electrons (EPR) has been making steady advances with invaluable applications: NMR initially, to physics, chemistry and biology and subsequently protein structure, materials science and to medical imaging. EPR to free radicals, radiation damage, transition metal chemistry, biological free radical reactions and oxidative stress, and recently in in-vivo applications in radiation oncology. Already several Nobel prizes have been awarded for research in the field with more exciting discoveries still on the way. An overview of the development and advances in the field of Magnetic Resonance will be presented.