Everything you want to know about HTTP caching but didn't want to ask

This is a beginners guide to HTTP caching and Drupal.

I often get asked in my day job, how this whole HTTP caching this works, and what would I recommend reading in order to learn more.

This presentation will cover the basics on:

* What is HTTP caching
* Places where you can cache
* Modules in Drupal - which to use, and which to avoid
* How to test you caching is working
* What are CDNs, and how do you best use them
* What does this mean for you and your team