By Josh Pollock
The new WordPress content editing system Gutenberg will be powering the WordPress post editor in WordPress 5.0. Gutenberg is a “block-based” editor. When creating content, everything is a block. If you have a post that is one paragraph, one header, and then two paragraphs, that’s four blocks.
Gutenberg comes with a set of default “core” blocks — paragraph, header, recent posts, image, blockquote, etc. If you’re using Gutenberg to create content, you use those blocks or custom blocks that are provided by WordPress plugins you install on your site.