this does not mean that all artists are left- handed and all accountants are right-handed. there are many exceptions. some right-hander have a strong right brain, and some left-hander have a strong left brain. the best thing would be to use both rignt and left sides of the brain. there are people who learn to do two things at the same time. they can answer practical questions on the telephone (which uses the left brain) and at the same time play the pianno (which uses the right brain) , but this not easy to do !