diff --git a/_SUMMARY.md b/_SUMMARY.md
index 3b561732b..7568b92d4 100644
--- a/_SUMMARY.md
+++ b/_SUMMARY.md
@@ -49,6 +49,11 @@
     * [Testing Highlighting](basics/testing_plugins/testing_highlighting.html)
 * [Architecture Reference Guide](reference_guide.html)
   * [Project Model](reference_guide/project_model.html)
+    * [Project](reference_guide/project_model/project.html) 
+    * [Module](reference_guide/project_model/module.html)
+    * [SDK](reference_guide/project_model/sdk.html)
+    * [Library](reference_guide/project_model/library.html)
+    * [Facet](reference_guide/project_model/facet.html)
   * [Custom Language Support](reference_guide/custom_language_support.html)
     * [Registering File Type](reference_guide/custom_language_support/registering_file_type.html)
     * [Implementing Lexer](reference_guide/custom_language_support/implementing_lexer.html)
diff --git a/reference_guide.md b/reference_guide.md
index 7f21f27d2..9d361e03f 100644
--- a/reference_guide.md
+++ b/reference_guide.md
@@ -8,7 +8,7 @@ If you are not familiar with *IntelliJ Platform* API please refer to
 [Basics](basics.html)
 section.
 
-
+* [Project Model](reference_guide/project_model.html)
 * [Custom Language Support](reference_guide/custom_language_support.html)
 * [Frameworks and External APIs](reference_guide/frameworks_and_external_apis.html)  
 * [VCS Integration Plugins](reference_guide/vcs_integration_for_plugins.html)
diff --git a/reference_guide/project_model.md b/reference_guide/project_model.md
index bb165caee..3a081aa62 100644
--- a/reference_guide/project_model.md
+++ b/reference_guide/project_model.md
@@ -14,6 +14,19 @@ and
 in
 [IntelliJ IDEA Web Help](https://www.jetbrains.com/idea/help/intellij-idea.html).
 
+Main project structure components are:
+
+* [Project](reference_guide/project_model/project.html) 
+  itself
+
+* [Module](reference_guide/project_model/module.html)
+
+* [SDK](reference_guide/project_model/sdk.html)
+
+* [Library](reference_guide/project_model/library.html)
+
+* [Facet](reference_guide/project_model/facet.html)
+
 
 ## Working with Projects