By default, WordPress posts and pages have a limited set of data-input fields. But sometimes you need to collect and display more data than what is available. This is where Advanced Custom Fields comes in handy. Using this plugin, you can create new custom fields for your posts, pages, and custom post types. Staff author Morten Rand-Hendriksen shows you how to set up your own fields and display the content on the front end of a site, connect posts with relational fields, and move the fields from a development environment to a live WordPress site.