The text introduces a creative method to highlight locations on a map using a "glass disc" effect, designed to make points of interest stand out without obscuring the underlying area. The effect is achieved through a three-step process in Mapbox Studio, involving styling circles with specific colors, opacities, and strokes to create the appearance of glass discs that align with the map's plane. To enhance visibility, a glowing effect is added beneath the discs by duplicating the layer and using a bright color with a blur. Additionally, custom or built-in icons can be layered on top to symbolize different points of interest, allowing for customization across zoom ranges and data conditions. This technique is presented as a fun and engaging way to experiment with map design and highlight specific locations or features effectively.