After customizing the post editor to give content creators a tailored environment to create and edit custom post type entries, this recipe turns its efforts toward the Book Reviews management page, where all the entries for this type are listed. By default, custom post type listings are quite simple and only show the title, publication date, and the number of comments for each item. To make it easier to identify, sort, and find data in this management page, WordPress offers a number of customization capabilities, starting with the ability to change the columns that are displayed.
This recipe shows how to add and remove columns in the post management page, as well as make sorting in new columns possible.