The document discusses various shapes, brushes, and paths that can be used in XAML. It describes the properties of lines, rectangles, ellipses, polygons, and polylines. It also covers brush types like SolidColorBrush, LinearGradientBrush, RadialGradientBrush, and others. Paths are described as the most powerful graphic element, with properties for stroke, fill, and data containing geometric figures like LineGeometry, RectangleGeometry, EllipseGeometry, and more. Transformations and loading XAML dynamically from code are also summarized.