The BeXRB systems hide many unresolved mysteries which the scientific community have not been able to unveil despite the huge amount of data brought down to earth by space missions and accumulated by on ground observatories. A group of experts in the field will discuss during a few days in Valencia the need to revise our theories and way of working in order to unmask the physics responsible of the very interesting poroperties of the BeXRB systems. Workshop web page: BeXRB2011.