Most people who come to the studio lighting workhop and I ask questions about adjusting exposure, the first this they adjust your shutter speed, well in studio lighting this is incorrct however in some cases shutter speed adjustment is required which can create some real effects, one being light painting. 

However this is also combined using gelled studio flash too and making both light painting and flash work together. 

This is one of the most fun workhshops and I get many returners too, however if it something you would like to learn then this is one workhshop for you.