Magnetic properties of rocks show a wide range of geoscience applications and they are rapid and non-destructive to measure. Magnetic susceptibility is one of the most common magnetic parameters that allows to distinguish between different rock types and to understand geological processes that are related to Fe-mineralogy. The physical basis for the discrimination is the nature of magnetic minerals, their distribution, and grain size. Thus, magnetic methods show great potential for reservoir rock characterization, fabric determination, ore deposits, environmental issues, and even pore fabric studies. We particularly encourage contributions dealing with reservoir characterization applying magnetic methods from all areas of geology including method developments and applications of magnetic methods in all kinds of geological reservoir characterization.