In this chapter, we learned the basics of styling data in GeoServer. We discussed the symbolizers we can use, how XML and the XML-based SLD styling language work, and finally, how we can create styles easily with CSS. You were introduced to the syntax of the aforementioned styling languages, and now can create styles for our vector and raster maps from simple visualization purposes to more advanced cartographic use cases.
In the next chapter, we will learn about the client side. We will explain how client-side web mapping software works, and how we can utilize them to request spatial data from the server's file system or a spatial server. We will also see how we can use spatial data with JavaScript, and how we can script a web mapping software to create interactive maps with already-styled images and raw vector data.
