diff --git a/gui/pom.xml b/gui/pom.xml
index 4c52bf9..b0c4486 100644
--- a/gui/pom.xml
+++ b/gui/pom.xml
@@ -82,8 +82,10 @@
                 <includes>
                     <include>**/*.fxml</include>
                     <include>**/*.css</include>
-                    <!-- icons -->
+                    <!-- icons & images -->
                     <include>**/*.png</include>
+                    <include>**/*.jpg</include>
+                    <include>**/*.jpeg</include>
                 </includes>
                 <filtering>false</filtering>
             </resource>
diff --git a/gui/src/main/java/module-info.java b/gui/src/main/java/module-info.java
index 0e5fb9d..81c3810 100644
--- a/gui/src/main/java/module-info.java
+++ b/gui/src/main/java/module-info.java
@@ -11,6 +11,7 @@
 
     // Allow @FXML injection to private fields.
     opens pl.marcinchwedczuk.elfviewer.gui.mainwindow;
-    exports pl.marcinchwedczuk.elfviewer.gui.mainwindow.renderer.dto;
+    opens pl.marcinchwedczuk.elfviewer.gui.aboutdialog;
     opens pl.marcinchwedczuk.elfviewer.gui.mainwindow.renderer.dto;
+    exports pl.marcinchwedczuk.elfviewer.gui.mainwindow.renderer.dto;
 }
\ No newline at end of file
diff --git a/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/App.java b/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/App.java
index 23f16ce..50b454c 100644
--- a/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/App.java
+++ b/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/App.java
@@ -1,6 +1,7 @@
 package pl.marcinchwedczuk.elfviewer.gui;
 
 import javafx.application.Application;
+import javafx.application.HostServices;
 import javafx.stage.Stage;
 import pl.marcinchwedczuk.elfviewer.gui.mainwindow.MainWindow;
 
@@ -8,6 +9,14 @@
  * JavaFX App
  */
 public class App extends Application {
+    private static HostServices hostServices = null;
+    public static HostServices hostServices() {
+        if (hostServices == null) {
+            throw new IllegalStateException();
+        }
+        return hostServices;
+    }
+
     @Override
     public void start(Stage stage) {
         Thread.setDefaultUncaughtExceptionHandler((t, e) -> {
@@ -15,6 +24,7 @@ public void start(Stage stage) {
             showExceptionDialog(e);
         });
 
+        hostServices = this.getHostServices();
         MainWindow.showOn(stage);
     }
 
diff --git a/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/aboutdialog/AboutDialog.fxml b/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/aboutdialog/AboutDialog.fxml
new file mode 100644
index 0000000..569b9fe
--- /dev/null
+++ b/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/aboutdialog/AboutDialog.fxml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.geometry.Insets?>
+<?import javafx.scene.control.Button?>
+<?import javafx.scene.control.Hyperlink?>
+<?import javafx.scene.control.Label?>
+<?import javafx.scene.image.Image?>
+<?import javafx.scene.image.ImageView?>
+<?import javafx.scene.layout.AnchorPane?>
+<?import javafx.scene.layout.ColumnConstraints?>
+<?import javafx.scene.layout.GridPane?>
+<?import javafx.scene.layout.RowConstraints?>
+<?import javafx.scene.text.Font?>
+
+<GridPane fx:id="rootElement" hgap="4.0" vgap="4.0" xmlns="http://javafx.com/javafx/16" xmlns:fx="http://javafx.com/fxml/1" fx:controller="pl.marcinchwedczuk.elfviewer.gui.aboutdialog.AboutDialog">
+   <rowConstraints>
+      <RowConstraints minHeight="10.0" vgrow="ALWAYS" />
+   </rowConstraints>
+   <columnConstraints>
+      <ColumnConstraints hgrow="ALWAYS" minWidth="10.0" />
+      <ColumnConstraints hgrow="ALWAYS" minWidth="10.0" />
+   </columnConstraints>
+   <children>
+      <ImageView fitWidth="200.0" pickOnBounds="true" preserveRatio="true" GridPane.rowSpan="2147483647">
+         <image>
+            <Image url="@about-panache.jpg" />
+         </image>
+      </ImageView>
+      <AnchorPane GridPane.columnIndex="1">
+         <children>
+            <Button cancelButton="true" defaultButton="true" layoutX="163.0" layoutY="314.0" minWidth="100.0" mnemonicParsing="false" onAction="#guiClose" text="OK" />
+            <Label layoutX="3.0" layoutY="14.0" text="Elf Viewer">
+               <font>
+                  <Font name="System Bold" size="24.0" />
+               </font>
+            </Label>
+            <Label layoutX="3.0" layoutY="43.0" text="by Marcin &quot;0xmarcin&quot; Chwedczuk" />
+            <Label layoutX="3.0" layoutY="60.0" text="MIT License" />
+            <Hyperlink layoutX="166.0" layoutY="89.0" onAction="#linkIcons8" text="icons8.com" />
+            <Label layoutX="3.0" layoutY="92.0" text="This program uses icons from:" />
+            <Hyperlink layoutY="134.0" onAction="#linkSourceCode" text="Source Code (GitHub)" />
+            <Hyperlink layoutY="159.0" onAction="#linkBugReport" text="Report Bug (GitHub)" />
+         </children>
+         <GridPane.margin>
+            <Insets bottom="8.0" left="8.0" right="8.0" top="8.0" />
+         </GridPane.margin>
+      </AnchorPane>
+   </children>
+   <padding>
+      <Insets bottom="4.0" left="4.0" right="4.0" top="4.0" />
+   </padding>
+</GridPane>
diff --git a/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/aboutdialog/AboutDialog.java b/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/aboutdialog/AboutDialog.java
new file mode 100644
index 0000000..f9ff801
--- /dev/null
+++ b/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/aboutdialog/AboutDialog.java
@@ -0,0 +1,60 @@
+package pl.marcinchwedczuk.elfviewer.gui.aboutdialog;
+
+import javafx.fxml.FXML;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Scene;
+import javafx.scene.layout.GridPane;
+import javafx.stage.Modality;
+import javafx.stage.Stage;
+import javafx.stage.StageStyle;
+import javafx.stage.Window;
+import pl.marcinchwedczuk.elfviewer.gui.App;
+
+import java.io.IOException;
+
+public class AboutDialog {
+    public static AboutDialog show(Window owner) {
+        try {
+            FXMLLoader loader = new FXMLLoader(
+                    AboutDialog.class.getResource("AboutDialog.fxml"));
+
+            Stage childWindow = new Stage();
+            childWindow.initOwner(owner);
+            childWindow.initModality(Modality.WINDOW_MODAL);
+            childWindow.initStyle(StageStyle.UTILITY);
+            childWindow.setTitle("About...");
+            childWindow.setScene(new Scene(loader.load()));
+            childWindow.setResizable(false);
+            childWindow.sizeToScene();
+
+            AboutDialog controller = loader.getController();
+            childWindow.show();
+            return controller;
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @FXML
+    private GridPane rootElement;
+
+    @FXML
+    private void guiClose() {
+        ((Stage)rootElement.getScene().getWindow()).close();
+    }
+
+    @FXML
+    private void linkIcons8() {
+        App.hostServices().showDocument("https://icons8.com/");
+    }
+
+    @FXML
+    private void linkSourceCode() {
+        App.hostServices().showDocument("https://github.com/marcin-chwedczuk/elf-viewer");
+    }
+
+    @FXML
+    private void linkBugReport() {
+        App.hostServices().showDocument("https://github.com/marcin-chwedczuk/elf-viewer/issues");
+    }
+}
diff --git a/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/aboutdialog/about-icon.png b/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/aboutdialog/about-icon.png
new file mode 100755
index 0000000..cb6bda8
Binary files /dev/null and b/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/aboutdialog/about-icon.png differ
diff --git a/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/aboutdialog/about-panache.jpg b/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/aboutdialog/about-panache.jpg
new file mode 100644
index 0000000..532b613
Binary files /dev/null and b/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/aboutdialog/about-panache.jpg differ
diff --git a/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/mainwindow/MainWindow.java b/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/mainwindow/MainWindow.java
index 9ee38d5..e806f16 100644
--- a/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/mainwindow/MainWindow.java
+++ b/gui/src/main/java/pl/marcinchwedczuk/elfviewer/gui/mainwindow/MainWindow.java
@@ -18,6 +18,7 @@
 import pl.marcinchwedczuk.elfviewer.elfreader.elf.arch.LongNativeWord;
 import pl.marcinchwedczuk.elfviewer.elfreader.elf.shared.ElfFile;
 import pl.marcinchwedczuk.elfviewer.elfreader.io.FileSystemFile;
+import pl.marcinchwedczuk.elfviewer.gui.aboutdialog.AboutDialog;
 import pl.marcinchwedczuk.elfviewer.gui.mainwindow.renderer.NothingRenderer;
 
 import java.io.File;
@@ -43,7 +44,7 @@ public static MainWindow showOn(Stage window) {
                 }
             });
 
-            controller.window = window;
+            controller.thisWindow = window;
 
             window.show();
 
@@ -53,7 +54,7 @@ public static MainWindow showOn(Stage window) {
         }
     }
 
-    private Window window;
+    private Window thisWindow;
 
     @FXML
     private TextField filterText;
@@ -161,7 +162,7 @@ private void tableViewKeyPressed(KeyEvent event) {
 
     @FXML
     private void guiOpen() {
-        File f = openFileChooser.showOpenDialog(window);
+        File f = openFileChooser.showOpenDialog(thisWindow);
         if (f != null) {
             loadElfFile(f);
         }
@@ -174,7 +175,7 @@ private void guiExit() {
 
     @FXML
     private void guiAbout() {
-
+        AboutDialog.show(thisWindow);
     }
 
     @FXML