a really handy tool - I have a pretty good eye for colour matching, sut the colour wheel is still a great resource to have. It outlines different colour schemes (so would be ideal for people who are not good at mating colours), and provides a guide on colour mixing for secondary and tertiary colours
I am trying to teach myself about colours and what works best when painting. This wheel has everything all together and I now have it on display next to my easel and refer to it constantly. Great product.