Offers contributions from broad areas related to quantum mysteries including working experimental and theoretical physicists, mathematicians, quantum information scientists, and philosophers

Discusses the boundaries of our current understanding of the quantum world including non-locality, complementarity, and uncertainty

Includes new mathematical ideas that approach quantum foundations including operator algebras, category theory, topos theory, and quantum information theory

Part I Quantum Reality: Sarah Cannon and Andreas D¿oring, A Generalisation of Stone Duality to Orthomodular Lattices.- G¿abor Hofer-Szab¿o, Bell's Local Causality is a d-Separation Criterion.- Yuichiro Kitajima, Local Operations and Completely Positive Maps in Algebraic Quantum Field Theory.- Klaas Landsman and Bert Lindenhovius, Symmetries in Exact Bohrification.- Mikl¿os R¿edei, Categorial Local Quantum Physics.- Part II Quantum Information: Francesco Buscemi, Reverse Data-Processing Theorems and Computational Second Laws:.- Michael J. W. Hall, Trust-Free Verification of Steering: Why You Can't Cheat a Quantum Referee.- Holger F. Hofmann, Dynamics and Statistics in the Operator Algebra of Quantum Mechanics.- Keiji Matsumoto, A New Quantum Version of f -Divergence.- Part III Quantum Measurement: Jeremy Butterfield, Peaceful Coexistence: Examining Kent's Relativistic Solution to the Quantum Measurement Problem.- Yuji Hasegawa, Relations Inherent in Successive 1=2??Spin Measurements.- Jasper van Heugten and Sander Wolters, Obituary for a Flea.- Kazuya Okamura, Measuring Processes and the Heisenberg Picture.