Best Practices covers jQuery Mobile, Designing for Mobile, some Tips and Tricks, a Glossary and some useful WordPress plugins.
jQuery Mobile covers the set up and a couple of the widgets that can be used in a jQuery Mobile site.
Designing for Mobile covers the information that is needed to create a mobile site without showing the entire website.
Tips and Tricks shows, using accordions, some useful information that helps to create great mobile and non-mobile sites.
The Glossary covers an extremely broad range of topics. It explains many questions that may come up as well as different pieces of jQuery Mobile.
The WordPress section covers some useful plugins that are free.