A shifted view of fundamental physics / Michael Atiyah and Gregory W. Moore -- Subgroups of depth three / Sebastian Burciu and Lars Kadison -- Yukawa couplings in F-theory and non-commutative geometry / Sergio Cecotti, et. al. -- Spin structures and superstrings / Jacques Distler, et. al. -- Operator traces and holography / Michael R. Douglas -- A loop of SU(2) gauge fileds stable under the Yang-Mills flow / Daniel Friedan -- Automorphisms of graded super symplectic manifolds / Joshua Leslie -- The signature of the Seiberg-Witten surface / Andreas Malmendier -- Eta forms and the odd pseudodifferential families index / Richard Melrose and Frederic Rochon -- Anomaly constraints and string/F-theory geormetry in 6D quantum gravity / Washington Taylor -- A new look at the path integral of quantum mechanics / Edward Witten -- Quasi-local mass in general relativity / Shing-Tung Yau.