Basic properties of the large-scale magnetic topologies of cTTSs, as a function of their locations in the Hertzsprung-Russel diagram. The symbol size indicates relative magnetic intensities, the symbol colour illustrates the field configurations (red to blue for purely poloidal to purely toroidal fields), and the symbol shape depicts the degree of axisymmetry of the poloidal field component (decagon and stars for purely axisymmetric and purely nonaxisymmetric poloidal fields, respectively). We also show the most recent magnetic (black) and nonmagnetic (cyan) PMS evolutionary tracks (dashed lines) and isochrones (dotted lines) of Feiden (2016).