This video demonstrates the sleeve drafting method from Helen Joseph-Armstrong's "Patternmaking" book (link below). It is the very basic sleeve shape, from which you can achieve any sleeve style you desire. You will need patterning paper, clear patterning ruler, French curve, measuring tape and pencil. Video link to add dart at elbow: @9HQ8 Helen Joseph-Armstrong's "Pattern Making" :https://www.abebooks.com/PATTERNMAKING-FASHION-ARMSTRONG-PEARSON/22631264775/bd?cm_mmc=ggl-_-US_Shopp_Trade-_-new-_-naa&gclid=EAIaIQobChMI576o5POD6QIVSF8NCh2rZg1OEAkYAyABEgJtJfD_BwE