# Annotation Types

Source: https://www.potatoannotator.com/docs/annotation-types/overview

An annotation type is the value of `annotation_type` in a scheme, and it decides what an annotator is asked to do with an item. Potato's registry has 61 of them.

The pages here cover the types most projects reach for. [Radio and multiselect](/docs/annotation-types/radio-multiselect) and [Likert scales](/docs/annotation-types/likert-scales) cover most labelling work. [Span annotation](/docs/annotation-types/span-annotation) and its relatives handle anything where the answer is a stretch of text rather than a whole item. The [image](/docs/annotation-types/image-annotation), [audio](/docs/annotation-types/audio-annotation) and [video](/docs/annotation-types/video-annotation) pages cover annotation over media. The comparison types, [pairwise](/docs/annotation-types/pairwise-comparison) and [best-worst](/docs/annotation-types/best-worst-scaling), cover judgments that are easier to make relatively than absolutely.

If you are still choosing between types rather than configuring one you have picked, [Choosing an Annotation Scheme](/docs/guides/choosing-an-annotation-scheme) is the better place to start. The [config builder](/playground) generates valid YAML for all 61 types.