i have one problem, first let me explain you my category list
when i'm writing post with image i add just artist no.x category, but when i'm writing biography i add artists no.x and biography category. And that works fine, i excluded ID of biography not to be shown in loop of artist no.x category.
My problem is if i'm wirting some exhibition i want to add all related artists (ok i can do that handly) but when i'm in inventory of some artist no.x i want to see in sidebar link to exhibitions category that will be show me list of exhibitions only with his category.
thanks for the answer