Nuclear magnetic resonance (NMR) is an analytical tool used by chemists and physicists to study the structure and dynamics of molecules. In recent years, no other technique has grown to such importance as NMR spectroscopy. It is used in all branches of science where precise structural determination is required and where the nature of interactions and reactions in solution is being studied. Annual Reports on NMR Spectroscopy has established itself as a means for the specialist and nonspecialist alike to become familiar with new applications of NMR spectroscopy in all branches of chemistry. Volume 46 continues the tradition with contributions on: NMR Studies of the effects of radiation on polymers; applications of long-range heteronuclear couplings; NMR studies of silk; and computer assisted NMR analysis. Read more... Abstract: Nuclear magnetic resonance (NMR) is an analytical tool used by chemists and physicists to study the structure and dynamics of molecules. In recent years, no other technique has grown to such importance as NMR spectroscopy. It is used in all branches of science where precise structural determination is required and where the nature of interactions and reactions in solution is being studied. Annual Reports on NMR Spectroscopy has established itself as a means for the specialist and nonspecialist alike to become familiar with new applications of NMR spectroscopy in all branches of chemistry. Volume 46 continues the tradition with contributions on: NMR Studies of the effects of radiation on polymers; applications of long-range heteronuclear couplings; NMR studies of silk; and computer assisted NMR analysis