The Columns block allows you to insert text, media and other types of content into up to six columns. When used one after another, the columns create a grid effect.
Get started by clicking the + Inserter icon at the bottom-left corner of the screen and select the Columns Block from the blocks list
Once you add the block you will see the option to select the layout at the botton of the screen. You can slide to the right to see more options
Once this is done you can start adding blocks to each column by clicking on the plus sign. In the
Please note the layout of the column block is displayed stacked if you visit your site from a small screen like a mobile device. This is due to the site responsiveness that adapts the content so it can be readable regardless of the size of the screen. However, if you visit your site from a computer you will see the columns as it is: