Overview of content structure concepts. Tasks on content types, taxonomies, and reference fields are covered. Part of the Drupal User Guide.
How to delete a content type that is not required for the site.
How to add fields to a content type.
Overview of reference fields and their commonly-used types.
Overview of taxonomy and how it can be used to categorize content in a website.
How to create a taxonomy vocabulary and add it as a field to a content type.
How to add a reference field that connects two content types.
Overview of view modes and field formatters.
Overview of image styles and how they are used to display a single image in several variations.
How to add an image style to reformat an image.
Overview of responsive image styles, which allow you to provide different images for different screen sizes.
Overview of text formats, filters, editors, and cross-site scripting.
How to make a change to a text format and its editor configuration.