How to run cron maintenance tasks using the core Automated Cron module, or by running them from outside the site.
How to update the core software using the administrative interface or Drush.
How to update a contributed module using Composer and the administrative interface for running the Database Updates script.
How to update a contributed theme using Composer and the administrative interface for running the Database Updates script.
How to add a reference field that connects two content types.
How to delete a content type that is not required for the site.
How to add fields to a content type.
Overview of responsive image styles, which allow you to provide different images for different screen sizes.
How to add an image style to reformat an image.
Overview of image styles and how they are used to display a single image in several variations.
Overview of reference fields and their commonly-used types.
How to create a taxonomy vocabulary and add it as a field to a content type.
Overview of taxonomy and how it can be used to categorize content in a website.
How to make a change to a text format and its editor configuration.
Overview of text formats, filters, editors, and cross-site scripting.
Overview of view modes and field formatters.