There is no usage guidance for this tag … yet!

Usage guidance, also known as a tag wiki excerpt, is a short blurb that describes when and why a tag should be used on this site specifically.

In the Magento architecture, a "Block" is one of the first class elements in the structure of Magento layouts. Every page in Magento is decorated by the "Layouts" file and the content is filled up by the "Blocks" of the different modules. Magento blocks are a really powerful and flexible way to plug­ your content into the already existing layouts. On the other hand, you could also use layout XML files to easily remove or reposition any existing blocks.

There is no surprise that considering the flexibility of the Magento architecture, you could also develop your own blocks using a custom module in Magento. Say, for example, you would like to pull a couple of special products for the upcoming festive season, and you want to display them on the front­ page. In that case, you could easily accomplish the task by implementing a custom block.