fine art
Something that requires finely-honed abilities and/or a particular expertise. Managing an entire team of people is a fine art—I don't think I could do it as well as Joann does.
fine art
Something requiring highly developed techniques and skills, as in He's turned lying into a fine art, or The contractor excels in the fine art of demolition. This term alludes to the fine arts, such as music, painting, and sculpture, which require both skill and talent. It is now often used to describe anything that takes skill to do. [First half of 1800s]