Solid-state NMR is a powerful tool to study non-crystalline systems of unlimited sizes. Developments of the last two decades allow us to study inatomic resolution biological assemblies of ever increasing molecular weights, and I will discuss how we can tailor these methods to study various filamentous bacteriophage viruses in the pre-mature and intact forms. Advanced methods, part of which we have also developed in our lab, also facilitated structural characterization of halogens, metal ions, and other uncommon NMR nuclei. We will demonstrate how with some of those methods we can study the chemical environment of the mood stabilizer lithium and obtain insights that will aid in understanding itsrole is the last-resort treatment for bipolar disorder and other mental illnesses.