Typical services include help with the purpose, structure, function of writing, and are geared toward writers of all levels and fields of study. Writing centers attempt to provide non-proscriptive and non-corrective response, instead relying on a fuller explanation of why a piece of writing may fail to fulfill the writer's aims. The goal is to help a writer learn to address the various exigences that she may encounter with the realization that no writing is decontextualized—it always addresses a specific audience.