A method of displaying an image, comprising: using a first graphics texture comprising one or more features to be displayed for the image in combination with a second graphics texture to apply a texture to a graphics primitive or primitives representing the image to be displayed in order to display the image; and displaying the graphics primitive or primitives representing the image having the applied texture to display the image; wherein: the second texture and the combining operation are configured such that using the first texture in combination with the second texture causes at least one image feature being displayed to be bordered by a border region that represents a border to that feature; wherein: the first texture is configured to display on the primitives one or more first image or map features, together with one or more transparent regions, and the second texture is configured to display image or map features and borders for second image or map features that are to appear in the transparent regions of the first texture when the textures are combined; and the step of using a first texture comprising one or more features to be displayed for the image or map in combination with a second texture to apply a texture to a graphics primitive or primitives representing the image or tile to be displayed, comprises: combining the first texture with a version of the second texture that has been perspectively correctly displaced in dependence on the view direction, and applying the combined first and second textures to the graphics primitive or primitives representing the image or tile, such that the first image or map features are perceived to belong to a parallel and different horizontal or vertical plane from the second image or map features. using a first graphics texture comprising one or more features to be displayed for the image in combination with a second graphics texture to apply a texture to a graphics primitive or primitives representing the image to be displayed in order to display the image; and displaying the graphics primitive or primitives representing the image having the applied texture to display the image; wherein: the second texture and the combining operation are configured such that using the first texture in combination with the second texture causes at least one image feature being displayed to be bordered by a border region that represents a border to that feature; wherein: the first texture is configured to display on the primitives one or more first image or map features, together with one or more transparent regions, and the second texture is configured to display image or map features and borders for second image or map features that are to appear in the transparent regions of the first texture when the textures are combined; and the step of using a first texture comprising one or more features to be displayed for the image or map in combination with a second texture to apply a texture to a graphics primitive or primitives representing the image or tile to be displayed, comprises: combining the first texture with a version of the second texture that has been perspectively correctly displaced in dependence on the view direction, and applying the combined first and second textures to the graphics primitive or primitives representing the image or tile, such that the first image or map features are perceived to belong to a parallel and different horizontal or vertical plane from the second image or map features. the first texture is configured to display on the primitives one or more first image or map features, together with one or more transparent regions, and the second texture is configured to display image or map features and borders for second image or map features that are to appear in the transparent regions of the first texture when the textures are combined; and the step of using a first texture comprising one or more features to be displayed for the image or map in combination with a second texture to apply a texture to a graphics primitive or primitives representing the image or tile to be displayed, comprises: combining the first texture with a version of the second texture that has been perspectively correctly displaced in dependence on the view direction, and applying the combined first and second textures to the graphics primitive or primitives representing the image or tile, such that the first image or map features are perceived to belong to a parallel and different horizontal or vertical plane from the second image or map features.