When you query a feature in the View window, information about that feature is shown in the Feature Information window. This information includes feature type, attributes (both user and format attributes), coordinate system, and geometry details.
The Attributes node lists all FME, format, and user-defined attributes and values that are part of the currently selected feature.
The Geometry node lists all geometric information for the currently selected feature.
For more information, see Querying Features: Understanding Feature Information.