diff --git a/README.md b/README.md
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+++ b/README.md
@@ -1,2 +1,128 @@
 # MicrosoftApiAuthentication
- 
+
+This is a simple Delphi-module to authenticate with Microsoft APIs using OAuth2.0.
+
+## Installation
+
+Just take the MicrosoftApiAuthentication.pas file and include it in your project.
+
+## Usage
+
+Depending on weather you want to authenticate with a Microsoft Account or with a client secret, the Create method of the TMsAuthenticator class has to be called with different parameters.
+
+### Microsoft Account (DELEGATED)
+
+```delphi
+<Var> := TMsAuthenticator.Create(
+    ATDelegated,
+    TMsClientInfo.Create(
+      '<YOUR TENANT ID>',
+      '<YOUR CLIENT ID>',
+      ['User.Read', '<SCOPES>'],
+      TRedirectUri.Create(8080, 'MyApp'), // YOUR REDIRECT URI (it must be localhost though)
+      TMsTokenStorege.CreateEmpty
+    ),
+    TMsClientEvents.Create(
+    procedure(ResponseInfo: THttpServerResponse)
+    begin
+      ResponseInfo.ContentStream := TStringStream.Create('<title>Login Succes</title>This tab can be closed now :)');  // YOUR SUCCESS PAGE, do whatever you want here
+    end,
+    procedure(Error: TMsError)
+    begin
+      Writeln(Format(  // A premade error message, do whatever you want here
+        ''
+        + '%sStatus: . . . . . %d : %s'
+        + '%sErrorName:  . . . %s'
+        + '%sErrorDescription: %s'
+        + '%sUrl:  . . . . . . %s %s'
+        + '%sData: . . . . . . %s',
+        [
+          sLineBreak, error.HTTPStatusCode, error.HTTPStatusText,
+          sLineBreak, error.HTTPerror_name,
+          sLineBreak, error.HTTPerror_description,
+          sLineBreak, error.HTTPMethod, error.HTTPurl,
+          sLineBreak, error.HTTPerror_data
+        ]
+      ));
+    end,
+    procedure(out Cancel: boolean)
+    begin
+      Cancel := KeyPressed(0);  // Cancel the authentication if a key is pressed
+      sleep(0); // if you refresh app-messages here you dont need the sleep
+      // Application.ProcessMessages;
+    end
+    )
+  );
+```
+
+### Client Secret (APPLICATION)
+
+```delphi
+<Var> := TMsAuthenticator.Create(
+    ATDelegated,
+    TMsClientInfo.Create(
+      '<YOUR TENANT ID>',
+      '<YOUR CLIENT ID>',
+      '<YOUR CLIENT SECRET>',
+      ['User.Read', '<SCOPES>'],
+      TRedirectUri.Create(8080, 'MyApp'), // YOUR REDIRECT URI (it must be localhost though)
+    ),
+    TMsClientEvents.Create(
+    procedure(ResponseInfo: THttpServerResponse)
+    begin
+      ResponseInfo.ContentStream := TStringStream.Create('<title>Login Succes</title>This tab can be closed now :)');  // YOUR SUCCESS PAGE, do whatever you want here
+    end,
+    procedure(Error: TMsError)
+    begin
+      Writeln(Format(  // A premade error message, do whatever you want here
+        ''
+        + '%sStatus: . . . . . %d : %s'
+        + '%sErrorName:  . . . %s'
+        + '%sErrorDescription: %s'
+        + '%sUrl:  . . . . . . %s %s'
+        + '%sData: . . . . . . %s',
+        [
+          sLineBreak, error.HTTPStatusCode, error.HTTPStatusText,
+          sLineBreak, error.HTTPerror_name,
+          sLineBreak, error.HTTPerror_description,
+          sLineBreak, error.HTTPMethod, error.HTTPurl,
+          sLineBreak, error.HTTPerror_data
+        ]
+      ));
+    end,
+    procedure(out Cancel: boolean)
+    begin
+      Cancel := KeyPressed(0);  // Cancel the authentication if a key is pressed
+      sleep(0); // if you refresh app-messages here you dont need the sleep
+      // Application.ProcessMessages;
+    end
+    )
+  );
+```
+
+### Adding Modules
+
+You can create your own modules by inheriting from TMsModule and implementing the abstract methods.
+
+```delphi
+unit MyModule;
+interface
+
+uses
+  MicrosoftApiAuthenticator;
+
+TMsMyAddon = class(TMsAdapter)
+private
+public
+  constructor Create(const Authenticator: TMsAuthenticator);
+end;
+
+implementation
+
+constructor TMsMyAddon.Create(const Authenticator: TMsAuthenticator);
+begin
+  inherited Create(Authenticator);
+end;
+
+end.
+```