Create a block using Drupal GUI

Log in to the website.
Navigate to "Structure" -> "Blocks" -> "Add Block"
Fill the empty fields and the necessary information:

Block Title: This is the title shown to the user. If you do not want to show any Title, write <none>
Block Description: This is a brief description of the Block visible on block listing page.
Block Body: Write the content of the block here.
Region Settings: Blocks are placed into regions. Place your block on a region such as Header, Content, Footer, etc. Note: You can navigate to Structure > Blocks and click on “Demonstrate block regions” to view the available regions as per your theme. The regions are theme specific. You can place the block in any of the enabled theme.
Visibility Settings: You can tell Drupal on which page the block will be visible. The visibility settings can be set for Pages, Content Types, Roles and Users.

• See more at: http://redcrackle.com/blog/how-create-block-drupal-7#sthash.oFOO5cFr.dpuf