This is the first technique book on metalpoint and
silverpoint drawing.
You can pre-order from the publisher or Amazon
Available Dec. 2018
https://www.routledge.com/Silverpoint-and-Metalpoint-Drawing-A-Complete-Guide-to-the-Medium/Schwalb-Mazzullo/p/book/9780815365907
https://www.amazon.com/Silverpoint-Metalpoint-Drawing-Complete-Medium/dp/081536590X/ref=sr_1_1?ie=UTF8&qid=1536424653&sr=8-1&keywords=silverpoint+and+metalpoint+drawing&dpID=51ER5s3DjCL&preST=_SY291_BO1,204,203,200_QL40_&dpSrc=srch
