IMPORTANT: Both text and images have excellent resolution and you'll be able to see details of the techinque using zoom in the downloaded PDF file. The full screen visualization on the slideshare website is not faithful to the original. Download it to have the best from it.
If you are not able to download it, try using another browser, choosing among Google Chrome, Internet Explorer, Mozilla etc.
Graphite Workshop guidebook - A thoroughly explained and didactically illustrated guide to graphite technique, specifically focused on its possibilities for scientific illustrations.
The guidebook is intended to support the practices of students before and during my workshops, but is surely very useful for anyone interested in the technique. The video lesson available on Yotube (links within file) also provides complementary demonstrations and further information (inclusion of English subtitles to the video is still in progress).