Percona Live '12 tutorial on Percona Toolkit.
This presentation uses Markdown Presenter (https://github.com/chrishulbert/MarkdownPresenter). You can view it by cloning this repo, then running ./start.sh and opening http://localhost:8080/Presenter.html. start.sh is just provided as a handy example, this will work on any web server if you have one set up already.