How does artists use drawings as preliminary works? Name at least two (2) artists who use drawings for this purpose and provide links to their work

Writing Nov 17, 2020

How does artists use drawings as preliminary works? Name at least two (2) artists who use drawings for this purpose and provide links to their work. When viewers see preliminary drawings as well as the finished art work, do they better understand the creative process and the evolution of the final work? If so, how and why?