The Block library opens when you click the (+) button to add a new block to your site. It contains various types of pre-built block layouts you can use to build your website.
Block types
Scroll down in the Block library to see the full list of block types. You can preview how a block looks before adding it to your site.
You can also use the search field to find the block type you need more quickly – type words like image, text, form, logo, and press enter.
Adding a block to a page
Find a block layout you like and click it to add it to your site. From there you can continue customising the block’s settings.