Topics covered will include the measurement of charge-densities in crystals by X-ray, electron and other diffraction methods (possibly jointly), time-resolved diffraction, excited states, pump-probe experiments, the extraction of physical properties from electrondensity measurements in solids, computational methods for densities inlarge systems such as proteins, strongly correlated systems: charge, spinand orbital ordering, bonding in organometallics and mesoporous materials, thermoelectric materials, bonding at surfaces, and related topics.