What better way to compliment the recent addition of sketchbooks to the APF catalogue than some quality drawing materials?
Nitram Charcoal is available in various hardnesses and sizes, including a large block for big drawings.
Unlike the usual willow or vine charcoals you may have come across, Nitram has been made to allow a greater range of tonal values and a stronger stick that will not crumble as readily. It also creates less dust than willow or vine when you're using it.