I really, really love good drawing, and recently I discovered professional artists' scratchboard - a medium in which black ink covers white clay, and scratching through the black ink makes a white line....the exact reverse of pen-and-ink. It's an unforgiving medium, as mistakes can't be corrected, but it rewards the patient draftsperson with dramatic images that emerge like magic from the dense black surface.

I've just begun exploring subject matter in this unique medium, and an arrogant, attitudinal rodeo bull - still wearing his buckstrap - made a fabulous study.