In this chapter we were introduced to OpenLayers and learned a bit about it.
We saw what Web Map Applications are and how they work. After that, we created our first map with OpenLayers, then analyzed how the code works. Then we covered a fundamental concept, Object Oriented Programming, which we'll need to know about while really working with OpenLayers. Lastly, resources for help and information outside this book were provided.
Now that we have a basic handle on OpenLayers, we'll jump straight into debugging OpenLayers. By doing so, we'll cover more thoroughly many of the concepts that we've discussed, such as how OpenLayers requests and receives map images, and how it puts them together.