diff --git a/backend/README.md b/backend/README.md
index e74750c46..b27ab16d9 100644
--- a/backend/README.md
+++ b/backend/README.md
@@ -1,16 +1,18 @@
 # backend
 
 ## Project setup
-```
+
+```bash
 yarn install
 ```
 
 ## Seed DB
-```
+
+```bash
 yarn seed
 ```
-Deletes all data in database. Then seeds data in database.
 
+Deletes all data in database. Then seeds data in database.
 
 ## Seeded Users
 
@@ -22,3 +24,47 @@ Deletes all data in database. Then seeds data in database.
 | bob@baumeister.de      | `Aa12345_` | `false` | `true`        | `false` |
 | garrick@ollivander.com |            | `false` | `false`       | `false` |
 | stephen@hawking.uk     | `Aa12345_` | `false` | `true`        | `true`  |
+
+## Setup GraphQL Playground
+
+### Setup In The Code
+
+Setting up the GraphQL Playground in our code requires the following steps:
+
+- Create an empty `.env` file in the `backend` folder and set "GRAPHIQL=true" there.
+- Start or restart Docker Compose.
+- For verification, Docker should display `GraphQL available at http://localhost:4000` in the terminal.
+- If you open "http://localhost:4000/" in your browser, you should see the GraphQL Playground.
+
+### Authentication
+
+You need to authenticate yourself in GraphQL Playground to be able to send queries and mutations, to do so follow the steps below:
+
+- in Firefox go to "Network Analysis" and delete all entries
+- enter and send the login query:
+
+```gql
+{
+  login(email: "bibi@bloxberg.de", password:"Aa12345_") {
+    id
+    publisherId
+    email
+    firstName
+    lastName
+    emailChecked
+    language
+    hasElopage
+  }
+}
+```
+
+- search in Firefox under „Network Analysis" for the smallest size of a header and copy the value of the token
+- open the header section in GraphQL Playground and set your current token by filling in and replacing `XXX`:
+
+```qgl
+{
+  "Authorization": "XXX"
+}
+```
+
+Now you can open a new tap in the Playground and enter your query or mutation there.