Using the spin properties of fundamental particles as a tool, we have an opportunity to advance one of the most exciting fields of science: nuclear physics. From the early Deep Inelastic Scattering studies a whole series of complementary measurements have been performed to better understand QCD. I will discuss recent measurements that have played a key role in our understanding of the theory that covers the interaction of quarks and gluons. These experiments, combined with world data into global analyses give  us insight into how quark and gluon properties translate into the properties of hadrons they make up. In addition we can continue to leverage spin to understand bulk properties of nuclear matter, such as the distributions of neutrons inside of heavy nuclei (such as 208Pb). Such experiments are vital for our understanding of nuclear matter here on Earth, but also the formation and dynamics of stelar objects such as neutron stars. Finally, I will discuss the exciting new opportunities on the horizon, in particular the Electron Ion Collider.