diff --git a/app/pom.xml b/app/pom.xml
index 509e563..5afca24 100644
--- a/app/pom.xml
+++ b/app/pom.xml
@@ -41,6 +41,13 @@
       <artifactId>junit-jupiter-params</artifactId>
       <scope>test</scope>
     </dependency>
+
+    <dependency>
+      <groupId>com.googlecode.lanterna</groupId>
+      <artifactId>lanterna</artifactId>
+      <version>3.1.5</version>
+    </dependency>
+
   </dependencies>
 
   <build>
@@ -91,5 +98,18 @@
         </plugin>
       </plugins>
     </pluginManagement>
+
+    <plugins>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>exec-maven-plugin</artifactId>
+        <version>3.6.3</version>
+
+        <configuration>
+          <mainClass>ru.project.App</mainClass>
+        </configuration>
+      </plugin>
+    </plugins>
+
   </build>
 </project>
diff --git a/app/src/main/java/ru/project/App.java b/app/src/main/java/ru/project/App.java
index 8fd4c39..bf57afc 100644
--- a/app/src/main/java/ru/project/App.java
+++ b/app/src/main/java/ru/project/App.java
@@ -1,10 +1,31 @@
 package ru.project;
 
-/**
- * Hello world!
- */
-public class App {
-    public static void main(String[] args) {
-        System.out.println("Hello World!");
+import com.googlecode.lanterna.gui2.MultiWindowTextGUI;
+import com.googlecode.lanterna.screen.Screen;
+import com.googlecode.lanterna.screen.TerminalScreen;
+import com.googlecode.lanterna.terminal.DefaultTerminalFactory;
+import ru.project.ui.MainMenu;
+import ru.project.ui.Navigator;
+
+public final class App {
+
+  private App() {}
+
+  public static void main(String[] args) throws Exception {
+    DefaultTerminalFactory factory = new DefaultTerminalFactory();
+
+    Screen screen = new TerminalScreen(factory.createTerminal());
+
+    screen.startScreen();
+
+    try {
+      MultiWindowTextGUI gui = new MultiWindowTextGUI(screen);
+
+      Navigator navigator = new Navigator(gui);
+
+      gui.addWindowAndWait(new MainMenu(navigator));
+    } finally {
+      screen.stopScreen();
     }
+  }
 }
diff --git a/app/src/main/java/ru/project/ui/CollectionView.java b/app/src/main/java/ru/project/ui/CollectionView.java
new file mode 100644
index 0000000..82b9540
--- /dev/null
+++ b/app/src/main/java/ru/project/ui/CollectionView.java
@@ -0,0 +1,8 @@
+package ru.project.ui;
+
+public class CollectionView extends EmptyMenu {
+
+  public CollectionView() {
+    super("Текущая коллекция");
+  }
+}
diff --git a/app/src/main/java/ru/project/ui/CountOccurrencesMenu.java b/app/src/main/java/ru/project/ui/CountOccurrencesMenu.java
new file mode 100644
index 0000000..db8e0c8
--- /dev/null
+++ b/app/src/main/java/ru/project/ui/CountOccurrencesMenu.java
@@ -0,0 +1,8 @@
+package ru.project.ui;
+
+public class CountOccurrencesMenu extends EmptyMenu {
+
+  public CountOccurrencesMenu() {
+    super("Подсчёт количества вхождений");
+  }
+}
diff --git a/app/src/main/java/ru/project/ui/CreateCollectionMenu.java b/app/src/main/java/ru/project/ui/CreateCollectionMenu.java
new file mode 100644
index 0000000..6ea56fc
--- /dev/null
+++ b/app/src/main/java/ru/project/ui/CreateCollectionMenu.java
@@ -0,0 +1,8 @@
+package ru.project.ui;
+
+public class CreateCollectionMenu extends EmptyMenu {
+
+  public CreateCollectionMenu() {
+    super("Создание новой коллекции");
+  }
+}
diff --git a/app/src/main/java/ru/project/ui/EmptyMenu.java b/app/src/main/java/ru/project/ui/EmptyMenu.java
new file mode 100644
index 0000000..0385780
--- /dev/null
+++ b/app/src/main/java/ru/project/ui/EmptyMenu.java
@@ -0,0 +1,23 @@
+package ru.project.ui;
+
+import com.googlecode.lanterna.gui2.BasicWindow;
+import com.googlecode.lanterna.gui2.Button;
+import com.googlecode.lanterna.gui2.Direction;
+import com.googlecode.lanterna.gui2.Label;
+import com.googlecode.lanterna.gui2.LinearLayout;
+import com.googlecode.lanterna.gui2.Panel;
+
+public abstract class EmptyMenu extends BasicWindow {
+
+  protected EmptyMenu(String title) {
+    super(title);
+
+    Panel panel = new Panel(new LinearLayout(Direction.VERTICAL));
+
+    panel.addComponent(new Label("Раздел находится в разработке"));
+
+    panel.addComponent(new Button("Назад", this::close));
+
+    setComponent(panel);
+  }
+}
diff --git a/app/src/main/java/ru/project/ui/MainMenu.java b/app/src/main/java/ru/project/ui/MainMenu.java
new file mode 100644
index 0000000..361ce13
--- /dev/null
+++ b/app/src/main/java/ru/project/ui/MainMenu.java
@@ -0,0 +1,34 @@
+package ru.project.ui;
+
+import com.googlecode.lanterna.gui2.BasicWindow;
+import com.googlecode.lanterna.gui2.Button;
+import com.googlecode.lanterna.gui2.Direction;
+import com.googlecode.lanterna.gui2.LinearLayout;
+import com.googlecode.lanterna.gui2.Panel;
+
+public class MainMenu extends BasicWindow {
+
+  public MainMenu(Navigator navigator) {
+    super("ГЛАВНОЕ МЕНЮ");
+
+    Panel panel = new Panel(new LinearLayout(Direction.VERTICAL));
+
+    panel.addComponent(new Button("Показать текущую коллекцию", navigator::showCollectionView));
+
+    panel.addComponent(new Button("Создать новую коллекцию", navigator::showCreateCollection));
+
+    panel.addComponent(
+        new Button("Сохранить текущую коллекцию в файл", navigator::showSaveCollection));
+
+    panel.addComponent(new Button("Сортировать текущую коллекцию", navigator::showSortCollection));
+
+    panel.addComponent(new Button("Найти элемент", navigator::showSearchElement));
+
+    panel.addComponent(
+        new Button("Подсчитать количество вхождений", navigator::showCountOccurrences));
+
+    panel.addComponent(new Button("Завершить выполнение программы", this::close));
+
+    setComponent(panel);
+  }
+}
diff --git a/app/src/main/java/ru/project/ui/Navigator.java b/app/src/main/java/ru/project/ui/Navigator.java
new file mode 100644
index 0000000..13489c1
--- /dev/null
+++ b/app/src/main/java/ru/project/ui/Navigator.java
@@ -0,0 +1,41 @@
+package ru.project.ui;
+
+import com.googlecode.lanterna.gui2.BasicWindow;
+import com.googlecode.lanterna.gui2.WindowBasedTextGUI;
+
+public class Navigator {
+
+  private final WindowBasedTextGUI gui;
+
+  public Navigator(WindowBasedTextGUI gui) {
+    this.gui = gui;
+  }
+
+  public void show(BasicWindow window) {
+    gui.addWindowAndWait(window);
+  }
+
+  public void showCollectionView() {
+    show(new CollectionView());
+  }
+
+  public void showCreateCollection() {
+    show(new CreateCollectionMenu());
+  }
+
+  public void showSaveCollection() {
+    show(new SaveCollectionMenu());
+  }
+
+  public void showSortCollection() {
+    show(new SortCollectionMenu());
+  }
+
+  public void showSearchElement() {
+    show(new SearchElementMenu());
+  }
+
+  public void showCountOccurrences() {
+    show(new CountOccurrencesMenu());
+  }
+}
diff --git a/app/src/main/java/ru/project/ui/SaveCollectionMenu.java b/app/src/main/java/ru/project/ui/SaveCollectionMenu.java
new file mode 100644
index 0000000..cc0f36a
--- /dev/null
+++ b/app/src/main/java/ru/project/ui/SaveCollectionMenu.java
@@ -0,0 +1,8 @@
+package ru.project.ui;
+
+public class SaveCollectionMenu extends EmptyMenu {
+
+  public SaveCollectionMenu() {
+    super("Сохранение текущей коллекции");
+  }
+}
diff --git a/app/src/main/java/ru/project/ui/SearchElementMenu.java b/app/src/main/java/ru/project/ui/SearchElementMenu.java
new file mode 100644
index 0000000..7e92c4f
--- /dev/null
+++ b/app/src/main/java/ru/project/ui/SearchElementMenu.java
@@ -0,0 +1,8 @@
+package ru.project.ui;
+
+public class SearchElementMenu extends EmptyMenu {
+
+  public SearchElementMenu() {
+    super("Поиск элемента");
+  }
+}
diff --git a/app/src/main/java/ru/project/ui/SortCollectionMenu.java b/app/src/main/java/ru/project/ui/SortCollectionMenu.java
new file mode 100644
index 0000000..68e6a7a
--- /dev/null
+++ b/app/src/main/java/ru/project/ui/SortCollectionMenu.java
@@ -0,0 +1,8 @@
+package ru.project.ui;
+
+public class SortCollectionMenu extends EmptyMenu {
+
+  public SortCollectionMenu() {
+    super("Сортировка текущей коллекции");
+  }
+}