diff --git a/core/modules/block/css/block.admin.css b/core/modules/block/css/block.admin.css
index 59f1332..407c7c0 100644
--- a/core/modules/block/css/block.admin.css
+++ b/core/modules/block/css/block.admin.css
@@ -58,6 +58,12 @@ a.block-demo-backlink:hover {
 #block-placed {
   background-color: #ffd;
 }
+#edit-settings-admin-label label {
+  display: inline;
+}
+#edit-settings-admin-label label:after {
+  content: ':';
+}
 
 /* Wide screens */
 @media
diff --git a/core/modules/block/lib/Drupal/block/BlockBase.php b/core/modules/block/lib/Drupal/block/BlockBase.php
index fa603d2..475b863 100644
--- a/core/modules/block/lib/Drupal/block/BlockBase.php
+++ b/core/modules/block/lib/Drupal/block/BlockBase.php
@@ -89,6 +89,11 @@ public function buildConfigurationForm(array $form, array &$form_state) {
       '#value' => $definition['module'],
     );
 
+    $form['admin_label'] = array(
+      '#type' => 'item',
+      '#title' => t('Block description'),
+      '#markup' => $definition['admin_label'],
+    );
     $form['label'] = array(
       '#type' => 'textfield',
       '#title' => $this->t('Title'),
diff --git a/core/modules/block/lib/Drupal/block/BlockFormController.php b/core/modules/block/lib/Drupal/block/BlockFormController.php
index 92d3696..4124e15 100644
--- a/core/modules/block/lib/Drupal/block/BlockFormController.php
+++ b/core/modules/block/lib/Drupal/block/BlockFormController.php
@@ -264,6 +264,9 @@ public function form(array $form, array &$form_state) {
       '#prefix' => '<div id="edit-block-region-wrapper">',
       '#suffix' => '</div>',
     );
+    $form['#attached']['css'] = array(
+      drupal_get_path('module', 'block') . '/css/block.admin.css',
+    );
     return $form;
   }
 
diff --git a/core/modules/block/lib/Drupal/block/BlockListController.php b/core/modules/block/lib/Drupal/block/BlockListController.php
index 30d0afd..b82bc96 100644
--- a/core/modules/block/lib/Drupal/block/BlockListController.php
+++ b/core/modules/block/lib/Drupal/block/BlockListController.php
@@ -175,6 +175,7 @@ public function buildForm(array $form, array &$form_state) {
       '#type' => 'table',
       '#header' => array(
         t('Block'),
+        t('Category'),
         t('Region'),
         t('Weight'),
         t('Operations'),
@@ -188,10 +189,11 @@ public function buildForm(array $form, array &$form_state) {
     foreach ($entities as $entity_id => $entity) {
       $definition = $entity->getPlugin()->getPluginDefinition();
       $blocks[$entity->get('region')][$entity_id] = array(
-        'admin_label' => $definition['admin_label'],
+        'label' => $entity->label(),
         'entity_id' => $entity_id,
         'weight' => $entity->get('weight'),
         'entity' => $entity,
+        'category' => $definition['category'],
       );
     }
 
@@ -255,16 +257,19 @@ public function buildForm(array $form, array &$form_state) {
           }
 
           $form['blocks'][$entity_id]['info'] = array(
-            '#markup' => check_plain($info['admin_label']),
+            '#markup' => check_plain($info['label']),
             '#wrapper_attributes' => array(
               'class' => array('block'),
             ),
           );
+          $form['blocks'][$entity_id]['type'] = array(
+            '#markup' => $info['category'],
+          );
           $form['blocks'][$entity_id]['region-theme']['region'] = array(
             '#type' => 'select',
             '#default_value' => $region,
             '#empty_value' => BLOCK_REGION_NONE,
-            '#title' => t('Region for @block block', array('@block' => $info['admin_label'])),
+            '#title' => t('Region for @block block', array('@block' => $info['label'])),
             '#title_display' => 'invisible',
             '#options' => $this->regions,
             '#attributes' => array(
@@ -281,7 +286,7 @@ public function buildForm(array $form, array &$form_state) {
             '#type' => 'weight',
             '#default_value' => $info['weight'],
             '#delta' => $weight_delta,
-            '#title' => t('Weight for @block block', array('@block' => $info['admin_label'])),
+            '#title' => t('Weight for @block block', array('@block' => $info['label'])),
             '#title_display' => 'invisible',
             '#attributes' => array(
               'class' => array('block-weight', 'block-weight-' . $region),
diff --git a/core/modules/block/lib/Drupal/block/Tests/BlockInterfaceTest.php b/core/modules/block/lib/Drupal/block/Tests/BlockInterfaceTest.php
index 5405989..3f22caa 100644
--- a/core/modules/block/lib/Drupal/block/Tests/BlockInterfaceTest.php
+++ b/core/modules/block/lib/Drupal/block/Tests/BlockInterfaceTest.php
@@ -58,12 +58,18 @@ public function testBlockInterface() {
     $display_block->setConfigurationValue('display_message', 'My custom display message.');
     $expected_configuration['display_message'] = 'My custom display message.';
     $this->assertIdentical($display_block->getConfiguration(), $expected_configuration, 'The block configuration was updated correctly.');
+    $definition = $display_block->getPluginDefinition();
 
     $expected_form = array(
       'module' => array(
         '#type' => 'value',
         '#value' => 'block_test',
       ),
+      'admin_label' => array(
+        '#type' => 'item',
+        '#title' => t('Block description'),
+        '#markup' => $definition['admin_label'],
+      ),
       'label' => array(
         '#type' => 'textfield',
         '#title' => 'Title',
diff --git a/core/modules/block/lib/Drupal/block/Tests/BlockUiTest.php b/core/modules/block/lib/Drupal/block/Tests/BlockUiTest.php
index 05921ed..356d480 100644
--- a/core/modules/block/lib/Drupal/block/Tests/BlockUiTest.php
+++ b/core/modules/block/lib/Drupal/block/Tests/BlockUiTest.php
@@ -24,6 +24,20 @@ class BlockUiTest extends WebTestBase {
   protected $regions;
 
   /**
+   * The submitted block values used by this test.
+   *
+   * @var array
+   */
+  protected $blockValues;
+
+  /**
+   * The block entities used by this test.
+   *
+   * @var \Drupal\block\BlockInterface[]
+   */
+  protected $blocks;
+
+  /**
    * An administrative user to configure the test environment.
    */
   protected $adminUser;
@@ -46,7 +60,7 @@ function setUp() {
     $this->drupalLogin($this->adminUser);
 
     // Enable some test blocks.
-    $this->testBlocks = array(
+    $this->blockValues = array(
       array(
         'label' => 'Tools',
         'tr' => '5',
@@ -62,8 +76,9 @@ function setUp() {
         'test_weight' => '0',
       ),
     );
-    foreach ($this->testBlocks as $values) {
-      $this->drupalPlaceBlock($values['plugin_id'], $values['settings']);
+    $this->blocks = array();
+    foreach ($this->blockValues as $values) {
+      $this->blocks[] = $this->drupalPlaceBlock($values['plugin_id'], $values['settings']);
     }
   }
 
@@ -88,9 +103,11 @@ function testBlockAdminUiPage() {
     $blocks_table = $this->xpath("//table[@id='blocks']");
     $this->assertTrue(!empty($blocks_table), 'The blocks table is being rendered.');
     // Look for test blocks in the table.
-    foreach ($this->testBlocks as $values) {
+    foreach ($this->blockValues as $delta => $values) {
+      $block = $this->blocks[$delta];
+      $label = $block->label();
       $element = $this->xpath('//*[@id="blocks"]/tbody/tr[' . $values['tr'] . ']/td[1]/text()');
-      $this->assertTrue((string)$element[0] == $values['label'], 'The "' . $values['label'] . '" block title is set inside the ' . $values['settings']['region'] . ' region.');
+      $this->assertTrue((string) $element[0] == $label, 'The "' . $label . '" block title is set inside the ' . $values['settings']['region'] . ' region.');
       // Look for a test block region select form element.
       $this->assertField('blocks[' . $values['settings']['id'] . '][region]', 'The block "' . $values['label'] . '" has a region assignment field.');
       // Move the test block to the header region.
@@ -101,17 +118,17 @@ function testBlockAdminUiPage() {
       $edit['blocks[' . $values['settings']['id'] . '][weight]'] = $values['test_weight'];
     }
     $this->drupalPostForm('admin/structure/block', $edit, t('Save blocks'));
-    foreach ($this->testBlocks as $values) {
+    foreach ($this->blockValues as $values) {
       // Check if the region and weight settings changes have persisted.
       $this->assertOptionSelected(
         'edit-blocks-' . $values['settings']['id']  . '-region',
         'header',
-        'The block "' . $values['label'] . '" has the correct region assignment (header).'
+        'The block "' . $label . '" has the correct region assignment (header).'
       );
       $this->assertOptionSelected(
         'edit-blocks-' . $values['settings']['id']  . '-weight',
         $values['test_weight'],
-        'The block "' . $values['label'] . '" has the correct weight assignment (' . $values['test_weight'] . ').'
+        'The block "' . $label . '" has the correct weight assignment (' . $values['test_weight'] . ').'
       );
     }
   }