I have a drawing student who has been very diligently working at her skills for perhaps 10 years. When we first met, my classes were full and the waiting list had 70 or 80 names on it. Her desire to learn was so strong that she asked me to recommend a book to her. As always, Betty Edwards’ Drawing on the Right Side of the Brain was my only and best idea. She bought it, worked through the exercises, and when space in my classes became available, it was apparent she really didn’t need drawing lessons from me! She disagrees with that analysis, but have a look at her work: