You've reached the end of the book! In this chapter, we built a simple web map application that grabs Flickr data based on user input. We covered some development concepts throughout the chapter, such as attempting to keep our code modular. We learned how to interact with other third-party APIs, and built an application from the ground up. Lastly, we talked about deployment and learned how to use the OpenLayers build script. Now that you've finished reading this book (I hope you've enjoyed it), you should be able to go out and make your own impressive web maps!