diff --git a/server/book/models/contentblock.py b/server/book/models/contentblock.py
index 38f77998..33bc4d23 100644
--- a/server/book/models/contentblock.py
+++ b/server/book/models/contentblock.py
@@ -16,6 +16,18 @@ class ContentBlock(StrictHierarchyPage):
         verbose_name = 'Inhaltsblock'
         verbose_name_plural = 'Inhaltsblöcke'
 
+    PLAIN = 'plain'
+    YELLOW = 'yellow'
+    GREEN = 'green'
+    BLUE = 'blue'
+
+    TYPE_CHOICES = (
+        (PLAIN, 'Normal'),
+        (YELLOW, 'Gelb'),
+        (GREEN, 'Grün'),
+        (BLUE, 'Blau'),
+    )
+
     contents = StreamField([
         ('text_block', TextBlock(icon='doc-full')),
         ('basic_knowledge', BasicKnowledgeBlock(icon='placeholder')),
@@ -27,12 +39,8 @@ class ContentBlock(StrictHierarchyPage):
 
     type = models.CharField(
         max_length=100,
-        choices=(
-            ('plain', 'Normal'),
-            ('yellow', 'Gelb'),
-            ('green', 'Grün'),
-            ('blue', 'Blau'),
-        )
+        choices=TYPE_CHOICES,
+        default=PLAIN
     )
 
     content_panels = [
diff --git a/server/book/schema/inputs.py b/server/book/schema/inputs.py
new file mode 100644
index 00000000..332ecd94
--- /dev/null
+++ b/server/book/schema/inputs.py
@@ -0,0 +1,29 @@
+from graphene import InputObjectType
+import graphene
+
+
+class InputTypes(graphene.Enum):
+    text_block = 'text_block'
+    basic_knowledge = 'basic_knowledge'
+    student_entry = 'student_entry'
+    image_block = 'image_block'
+    link_block = 'link_block'
+    task = 'task'
+
+
+class ContentElementInput(InputObjectType):
+    #  we'll handle this with a single input, even tho it would be nice to have a type for every different possibility
+    #  see discussion at https://github.com/graphql/graphql-js/issues/207
+    type = InputTypes(required=True)
+    text = graphene.String(description='To be used for link_block, text_block types')
+    url = graphene.String(description='To be used for link, basic_knowledge, image_block types')
+    description = graphene.String(description='To be used for basic_knowledge type')
+    title = graphene.String(description='To be used for image_block type')
+    task_text = graphene.String(description='To be used for task type')
+
+
+class ContentBlockInput(InputObjectType):
+    title = graphene.String(required=True)
+    type = graphene.String()
+    after = graphene.ID()
+    contents = graphene.List(ContentElementInput)
diff --git a/server/book/schema/mutations.py b/server/book/schema/mutations.py
index 8d03cfa2..2e01e84a 100644
--- a/server/book/schema/mutations.py
+++ b/server/book/schema/mutations.py
@@ -1,12 +1,17 @@
+import json
+
 import graphene
+from graphene import relay
 from django.core.exceptions import ValidationError
+from wagtail.core.fields import StreamField
 
 from api.utils import get_object, get_errors
-from book.models import ContentBlock
+from book.models import ContentBlock, Chapter
+from book.schema.inputs import ContentBlockInput
 from book.schema.queries import ContentBlockNode
 
 
-class MutateContentBlock(graphene.relay.ClientIDMutation):
+class MutateContentBlock(relay.ClientIDMutation):
     class Input:
         id = graphene.ID()
         type = graphene.String()
@@ -58,5 +63,37 @@ class MutateContentBlock(graphene.relay.ClientIDMutation):
         return cls(content_block=None, errors=errors)
 
 
+class AddContentBlock(relay.ClientIDMutation):
+    class Input:
+        content_block = graphene.Argument(ContentBlockInput)
+
+    new_content_block = graphene.Field(ContentBlockNode)
+
+    @classmethod
+    def mutate_and_get_payload(cls, root, info, **args):
+        content_block_data = args.get('content_block')
+        title = content_block_data.get('title')
+        new_content_block = ContentBlock(title=title)
+        parent = Chapter.objects.get(pk=18).specific  # atm just "1.1 Lehrbeginn" / todo: dynamic, refactor in above class
+        parent.add_child(instance=new_content_block)
+        revision = new_content_block.save_revision()
+        revision.publish()
+        new_content_block.save()
+
+        contents = content_block_data.get('contents')
+        for content in contents:
+            # todo: add all the content blocks
+            # todo: refactor this mess
+            if content['type'] == 'text_block':
+                new_content_block.contents = json.dumps([
+                    {'type': 'text_block', 'value': {
+                        'text': '<p>{}</p>'.format(content['text'])
+                    }}
+                ])
+        new_content_block.save()
+        return cls(new_content_block=new_content_block)
+
+
 class BookMutations(object):
     mutate_content_block = MutateContentBlock.Field()
+    add_content_block = AddContentBlock.Field()