This week's FiftyOne tips and tricks blog delves into the use of polylines in computer vision tasks. Polylines are a sequence of connected line segments used to represent and approximate the shape of an object or region within an image, commonly employed in tasks such as image annotation, object tracking, and shape analysis. The blog covers creating classic polylines, polygons with polylines, cuboids, and rotated bounding boxes using FiftyOne's implementation of polylines. These diverse labeling techniques enable computer vision professionals to more effectively and precisely address a wide array of real-world problems, facilitating better representation and understanding of complex visual data.