This volume explores, explains, and supports the case for an advanced exotic beam facility from a theoretical perspective. The US nuclear physics community and the US Department of Energy are committed to building such a facility. The topics covered constitute a survey of present activities in nuclear theory that will set the challenges for an advanced exotic-beam facility and provide the starting point for interpreting experiments that will be conducted there. The research programs described are all at the forefront of nuclear theory, and they include research on the detailed structures of the lightest nuclei, systematic descriptions of all observed nuclei, nuclear tests of fundamental symmetries of nature, the explosion mechanisms of supernovae, and astrophysical synthesis of the heavy elements, as well as several other topics.Contents:Coupled-Cluster Theory for Nuclei (D J Dean)Three-Body Decay of Nuclear Resonances (A S Jensen et al.)Some Challenges for Nuclear Density Functional Theory (T Duguet et al.)Beta Decay, the r-Process, and RIA (J Engel)Fermion Systems with Fuzzy Symmetries (Leveraging the Known to Understand the Unknown) (J P Draayer et al.)Quantum Monte Carlo: Not Just for Energy Levels (K M Nollett)Harmonic-Oscillator-Based Effective Theory (W C Haxton)Predictive r-Process Calculations (C L Fryer et al.)and other papersReadership: Graduate students, academics and researchers in nuclear physics, theoretical physics, astrophysics and accelerator physics.