diff --git a/client/src/graphql/gql/sandbox/hiddenForContentBlockQuery.gql b/client/src/graphql/gql/sandbox/hiddenForContentBlockQuery.gql
new file mode 100644
index 00000000..58e20095
--- /dev/null
+++ b/client/src/graphql/gql/sandbox/hiddenForContentBlockQuery.gql
@@ -0,0 +1,23 @@
+query ContentBlockQuery {
+  chapter(id: "RmlsdGVyZWRDaGFwdGVyTm9kZTo3") {
+    id
+    slug
+    contentBlocks {
+      edges {
+        node {
+          id
+          title
+          slug
+          hiddenFor {
+            edges {
+              node {
+                id
+                name
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}
diff --git a/server/book/migrations/0002_auto_20180913_0738.py b/server/book/migrations/0002_auto_20180913_0738.py
new file mode 100644
index 00000000..04154d44
--- /dev/null
+++ b/server/book/migrations/0002_auto_20180913_0738.py
@@ -0,0 +1,27 @@
+# Generated by Django 2.0.6 on 2018-09-13 07:38
+
+from django.db import migrations, models
+import wagtail.core.blocks
+import wagtail.core.fields
+import wagtail.images.blocks
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('user', '0001_initial'),
+        ('book', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='contentblock',
+            name='hidden_for',
+            field=models.ManyToManyField(to='user.UserGroup'),
+        ),
+        migrations.AlterField(
+            model_name='contentblock',
+            name='contents',
+            field=wagtail.core.fields.StreamField([('text_block', wagtail.core.blocks.StructBlock([('text', wagtail.core.blocks.RichTextBlock())], icon='doc-full')), ('basic_knowledge', wagtail.core.blocks.StructBlock([('description', wagtail.core.blocks.RichTextBlock()), ('url', wagtail.core.blocks.URLBlock())], icon='placeholder')), ('student_entry', wagtail.core.blocks.StructBlock([('task_text', wagtail.core.blocks.RichTextBlock())], icon='download')), ('image_block', wagtail.images.blocks.ImageChooserBlock(icon='image')), ('link_block', wagtail.core.blocks.StructBlock([('text', wagtail.core.blocks.TextBlock()), ('url', wagtail.core.blocks.URLBlock())], icon='link')), ('task', wagtail.core.blocks.StructBlock([('text', wagtail.core.blocks.RichTextBlock())], icon='tick')), ('video_block', wagtail.core.blocks.StructBlock([('url', wagtail.core.blocks.URLBlock())], icon='media')), ('document_block', wagtail.core.blocks.StructBlock([('url', wagtail.core.blocks.URLBlock())], icon='doc-full'))], blank=True, null=True),
+        ),
+    ]
diff --git a/server/book/models/contentblock.py b/server/book/models/contentblock.py
index 51538212..40217ecd 100644
--- a/server/book/models/contentblock.py
+++ b/server/book/models/contentblock.py
@@ -29,6 +29,8 @@ class ContentBlock(StrictHierarchyPage):
         (BLUE, 'Blau'),
     )
 
+    hidden_for = models.ManyToManyField(UserGroup)
+
     contents = StreamField([
         ('text_block', TextBlock(icon='doc-full')),
         ('basic_knowledge', BasicKnowledgeBlock(icon='placeholder')),
diff --git a/server/book/schema/queries.py b/server/book/schema/queries.py
index f62415dc..4050930a 100644
--- a/server/book/schema/queries.py
+++ b/server/book/schema/queries.py
@@ -10,7 +10,7 @@ class ContentBlockNode(DjangoObjectType):
     class Meta:
         model = ContentBlock
         only_fields = [
-            'slug', 'title', 'type', 'contents'
+            'slug', 'title', 'type', 'contents', 'hidden_for'
         ]
         filter_fields = [
             'slug', 'title',