diff --git a/README.md b/README.md
index df4ca5f2..35df8f34 100644
--- a/README.md
+++ b/README.md
@@ -127,6 +127,10 @@ cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=../install -DPATH_TO_LLV
make install
```
+### Using as Libraries
+
+Please refer to [how to use ClangSharp as libraris](./docs/how-to-use-as-libraries/index.md) to learn how to use as libraries.
+
### Generating Bindings
This program will take a given set of C or C++ header files and generate C# bindings from them. It is still a work-in-progress and not every declaration can have bindings generated today (contributions are welcome).
diff --git a/docs/how-to-use-as-libraries/getting-started.md b/docs/how-to-use-as-libraries/getting-started.md
new file mode 100644
index 00000000..f756180c
--- /dev/null
+++ b/docs/how-to-use-as-libraries/getting-started.md
@@ -0,0 +1,135 @@
+# Getting Started
+
+A complete example using ClangSharp is [PInvokeGenerator](../../sources/ClangSharpPInvokeGenerator/), but it's a huge app with lots of options and a bit too much for a tutorial.
+
+Therefore here describes how to get start to using ClangSharp as C/C++ syntactic analysis library.
+
+## Project Overview
+
+[ClangSharp repository](../../) contains several contents and they depend on each other for itself objective.
+
+When used as a library, [sources/ClangSharp](../../sources/ClangSharp/) will be the main content.
+
+
+
+
+
+## References Requirements in Your Project
+
+To get started using ClangSharp, you need append several configurations in your `*.csproj`.
+
+```xml
+
+
+
+ Exe
+ net10.0
+ enable
+ enable
+
+
+ linux-x64
+
+
+
+
+
+
+
+
+
+
+
+```
+
+## Sample App to Show C language AST
+
+To analyze C/C++ source code with ClangSharp, you need to follow these steps:
+
+1. Creates `CXIndex` instance
+2. Creates `CXTranslationUnit` instance with the target source file path
+3. Creates `TranslationUnit` instance
+4. Traces `Decl` instance from `TranslationUnit.TranslationUnitDecl`
+
+Following source *Program.cs* is minimum sample to show declarations/statements in C source file.
+
+```CSharp
+using ClangSharp;
+using ClangSharp.Interop;
+
+string sourceFilePath = args[0];
+CXIndex index = CXIndex.Create();
+Span commandLineArgs = ["--language=c",];
+Span unsavedFiles = [];
+CXTranslationUnit cxtu = CXTranslationUnit.CreateFromSourceFile(index, sourceFilePath, commandLineArgs, unsavedFiles);
+using TranslationUnit tu = TranslationUnit.GetOrCreate(cxtu);
+Console.WriteLine($"target source file: {tu.TranslationUnitDecl}");
+PrintDecl(tu.TranslationUnitDecl, " ");
+
+
+static void PrintDecl(Decl decl, string indent)
+{
+ Console.WriteLine($"{indent}[decl][{decl.Location}] {decl.DeclKindName} {decl.Spelling}");
+ indent += " ";
+ foreach (var child in decl.Decls)
+ {
+ PrintDecl(child, indent);
+ }
+ if(decl.Body is { } body)
+ {
+ PrintStmt(body, indent);
+ }
+}
+
+static void PrintStmt(Stmt stmt, string indent)
+{
+ Console.WriteLine($"{indent}[stmt][{stmt.Location}] {stmt.StmtClass} {stmt.Spelling}");
+ indent += " ";
+ foreach (var child in stmt.Children)
+ {
+ PrintStmt(child, indent);
+ }
+}
+```
+
+Running this app will produce the following results.
+
+- command
+
+ ```bash
+ dotnet run -- main.c
+ ```
+
+- input source file `./main.c`
+
+ ```c
+ #include
+
+ int main() {
+ printf("Hello, World!\n");
+ return 0;
+ }
+ ```
+
+- console output
+
+ ```plaintext
+ target source file: ./main.c
+ [decl][Line 0, Column 0 in ] TranslationUnit ./main.c
+ [decl][Line 0, Column 0 in ] Typedef __int128_t
+ [decl][Line 0, Column 0 in ] Typedef __uint128_t
+ [decl][Line 0, Column 0 in ] Typedef __NSConstantString
+ [decl][Line 0, Column 0 in ] Typedef __builtin_ms_va_list
+ [decl][Line 0, Column 0 in ] Typedef __builtin_va_list
+ [decl][Line 3, Column 5 in ./main.c] Function main
+ [stmt][Line 3, Column 12 in ./main.c] CX_StmtClass_CompoundStmt
+ [stmt][Line 4, Column 5 in ./main.c] CX_StmtClass_FirstCallExpr printf
+ [stmt][Line 4, Column 5 in ./main.c] CX_StmtClass_FirstCastExpr printf
+ [stmt][Line 4, Column 5 in ./main.c] CX_StmtClass_DeclRefExpr printf
+ [stmt][Line 4, Column 12 in ./main.c] CX_StmtClass_FirstCastExpr
+ [stmt][Line 4, Column 12 in ./main.c] CX_StmtClass_FirstCastExpr
+ [stmt][Line 4, Column 12 in ./main.c] CX_StmtClass_StringLiteral "Hello, World!\n"
+ [stmt][Line 5, Column 5 in ./main.c] CX_StmtClass_ReturnStmt
+ [stmt][Line 5, Column 12 in ./main.c] CX_StmtClass_IntegerLiteral
+ [decl][Line 4, Column 5 in ./main.c] Function printf
+ ```
diff --git a/docs/how-to-use-as-libraries/img/project-overview.svg b/docs/how-to-use-as-libraries/img/project-overview.svg
new file mode 100644
index 00000000..dbdf2313
--- /dev/null
+++ b/docs/how-to-use-as-libraries/img/project-overview.svg
@@ -0,0 +1 @@
+
\ No newline at end of file
diff --git a/docs/how-to-use-as-libraries/index.md b/docs/how-to-use-as-libraries/index.md
new file mode 100644
index 00000000..a9b3a01a
--- /dev/null
+++ b/docs/how-to-use-as-libraries/index.md
@@ -0,0 +1,5 @@
+# Index - how to use ClangSharp as libraris
+
+ClangSharp can be used as libraries for C/C++ syntactic analysis.
+
+- [Getting Started](./getting-started.md)
+