Blocks have always been the glue that holds any Drupal site together. This is no less true in Drupal 8. Let's take a look into different ways of leveraging their new features. Blocks in Drupal 8 have changed significantly from their use in Drupal 7. We will look at different ways that fieldable block types and display modes change the way we structure our sites. We will also take some time to look at some of the headaches you might run into and some solutions.