diff --git a/headers/enduro2d/high/_all.hpp b/headers/enduro2d/high/_all.hpp
index 8090a2d9..14b656ce 100644
--- a/headers/enduro2d/high/_all.hpp
+++ b/headers/enduro2d/high/_all.hpp
@@ -7,3 +7,5 @@
 #pragma once
 
 #include "_high.hpp"
+
+#include "library.hpp"
diff --git a/headers/enduro2d/high/_high.hpp b/headers/enduro2d/high/_high.hpp
index c0e443cc..774ebffd 100644
--- a/headers/enduro2d/high/_high.hpp
+++ b/headers/enduro2d/high/_high.hpp
@@ -10,4 +10,5 @@
 
 namespace e2d
 {
+    class library;
 }
diff --git a/headers/enduro2d/high/library.hpp b/headers/enduro2d/high/library.hpp
new file mode 100644
index 00000000..9b3718e6
--- /dev/null
+++ b/headers/enduro2d/high/library.hpp
@@ -0,0 +1,28 @@
+/*******************************************************************************
+ * This file is part of the "Enduro2D"
+ * For conditions of distribution and use, see copyright notice in LICENSE.md
+ * Copyright (C) 2018 Matvey Cherevko
+ ******************************************************************************/
+
+#pragma once
+
+#include "_high.hpp"
+
+namespace e2d
+{
+    class bad_library_operation final : public exception {
+    public:
+        const char* what() const noexcept final {
+            return "bad library operation";
+        }
+    };
+
+    class library final : public module<library> {
+    public:
+        library();
+        ~library() noexcept final;
+    private:
+        class internal_state;
+        std::unique_ptr<internal_state> state_;
+    };
+}
diff --git a/sources/enduro2d/high/library.cpp b/sources/enduro2d/high/library.cpp
new file mode 100644
index 00000000..afb6115d
--- /dev/null
+++ b/sources/enduro2d/high/library.cpp
@@ -0,0 +1,25 @@
+/*******************************************************************************
+ * This file is part of the "Enduro2D"
+ * For conditions of distribution and use, see copyright notice in LICENSE.md
+ * Copyright (C) 2018 Matvey Cherevko
+ ******************************************************************************/
+
+#include <enduro2d/high/library.hpp>
+
+namespace e2d
+{
+    //
+    // library::internal_state
+    //
+
+    class library::internal_state final : private e2d::noncopyable {
+    };
+
+    //
+    // library
+    //
+
+    library::library()
+    : state_(new internal_state()){}
+    library::~library() noexcept = default;
+}
diff --git a/untests/CMakeLists.txt b/untests/CMakeLists.txt
index 84ff44a5..d4f69429 100644
--- a/untests/CMakeLists.txt
+++ b/untests/CMakeLists.txt
@@ -51,5 +51,6 @@ endfunction(add_e2d_tests)
 
 add_e2d_tests(base)
 add_e2d_tests(core)
+add_e2d_tests(high)
 add_e2d_tests(math)
 add_e2d_tests(utils)
diff --git a/untests/sources/untests_high/_high.cpp b/untests/sources/untests_high/_high.cpp
new file mode 100644
index 00000000..b0eccf3d
--- /dev/null
+++ b/untests/sources/untests_high/_high.cpp
@@ -0,0 +1,11 @@
+/*******************************************************************************
+ * This file is part of the "Enduro2D"
+ * For conditions of distribution and use, see copyright notice in LICENSE.md
+ * Copyright (C) 2018 Matvey Cherevko
+ ******************************************************************************/
+
+#define CATCH_CONFIG_MAIN
+#include "_high.hpp"
+
+TEST_CASE("high") {
+}
diff --git a/untests/sources/untests_high/_high.hpp b/untests/sources/untests_high/_high.hpp
new file mode 100644
index 00000000..2ac591f1
--- /dev/null
+++ b/untests/sources/untests_high/_high.hpp
@@ -0,0 +1,9 @@
+/*******************************************************************************
+ * This file is part of the "Enduro2D"
+ * For conditions of distribution and use, see copyright notice in LICENSE.md
+ * Copyright (C) 2018 Matvey Cherevko
+ ******************************************************************************/
+
+#pragma once
+
+#include "../common.hpp"
diff --git a/untests/sources/untests_high/library.cpp b/untests/sources/untests_high/library.cpp
new file mode 100644
index 00000000..2df1ecaf
--- /dev/null
+++ b/untests/sources/untests_high/library.cpp
@@ -0,0 +1,11 @@
+/*******************************************************************************
+ * This file is part of the "Enduro2D"
+ * For conditions of distribution and use, see copyright notice in LICENSE.md
+ * Copyright (C) 2018 Matvey Cherevko
+ ******************************************************************************/
+
+#include "_high.hpp"
+using namespace e2d;
+
+TEST_CASE("library"){
+}