In a sketch, the fieldworker, struck by a vivid sensory impression, describes a scene primarily through detailed imagery. Much as in a photograph, sequencing of actions does not dominate. Rather, the writer, as a more distanced observer looking out on a scene, describes what she senses, pausing for a moment in recounting the action to create a descriptive snapshot of a character or a setting. As a result, sketches might be short paragraphs or a few sentences within the overall narrative. Such static snapshots help orient the reader to the relevant details of the contexts in which actions take
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