diff --git a/README.md b/README.md
index bc1665b..55e423a 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,73 @@
-# RaytracingGPU
+# CUDA RayTracing Project
 
-Run `make` in the repo directory which will generate an executable `./raytracer`. Run that executable to generate an image.
+This project implemented ray tracing on GPU (NVIDIA CUDA). It also includes our implementations of various optimization techniques for benchmarking performance and identifying best practices.
 
-The code has only been tested on a Polytechnique machine (Ubuntu) with CUDA pre-installed.
+<table>
+  <tr>
+    <td align="center">
+      <img src="gif/spheres.gif" alt="Spheres with circulating light source" width="100%">
+      <p>Rendering spheres with circulating light source</p>
+    </td>
+    <td align="center">
+      <img src="gif/cat.gif" alt="Playing with cat" width="100%">
+      <p>Real-time interactive with TriangleMesh rendering</p>
+    </td>
+  </tr>
+</table>
 
-![Spheres with circulating light source](gif/spheres.gif)
-![Playing with cat](gif/cat.gif)
+## Table of Contents
+- [Prerequisites](#prerequisites)
+- [Build Instructions](#build-instructions)
+- [Targets](#targets)
+- [Usage](#usage)
+
+## Prerequisites
+
+Before building the project, ensure you have the following installed:
+
+- NVIDIA CUDA Toolkit
+- GCC (for compiling the CPU code)
+- NVCC (NVIDIA CUDA Compiler)
+
+## Build Instructions
+
+To build the project, you can use the provided `Makefile`. The `Makefile` includes various targets for building different versions of the rendering programs.
+
+To build all targets, simply run:
+
+```sh
+make all
+```
+
+# Targets
+
+The `Makefile` defines several targets for building different versions of the CUDA rendering and optimization programs:
+
+- `realtime`: Compiles `realtime_render.cu` for real-time rendering.
+- `global`: Compiles `global_launcher.cu` for global memory access.
+- `array_bvh`: Compiles `different-versions/array_bvh.cu` for BVH with array storage.
+- `optimized`: Compiles `optimized.cu` for general optimizations.
+- `optimized_vertices-in-shared`: Compiles `different-versions/optimized_vertices-in-shared.cu` for shared memory optimization.
+- `optimized_non-coalesced`: Compiles `different-versions/optimized_non-coalesced.cu` for non-coalesced memory access optimization.
+- `optimized_bvh-tree`: Compiles `different-versions/optimized_bvh-tree.cu` for optimized BVH tree.
+- `optimized_bvh-texture`: Compiles `different-versions/optimized_bvh-texture.cu` for optimized BVH using textures.
+- `optimized_recursive`: Compiles `different-versions/optimized_recursive.cu` for optimized recursive BVH.
+- `cpu`: Compiles `cpu_launcher.cpp` for CPU rendering using OpenMP.
+
+## Usage
+
+After building the targets using the `make` command (e.g., `make all` or `make <target>`), you can run the respective executables. Here are examples of how to run some of the programs:
+
+```sh
+./realtime      # Run the real-time rendering program
+./global        # Run the global memory access program
+./array_bvh     # Run the BVH with array storage program
+./optimized     # Run the general optimizations program
+```
+
+## Notes
+The code has only been tested on Linux machines (Ubuntu) with CUDA and OpenGL installed.
+
+## Authors
+
+Project Members: Cong VU, Minh PHAM, The NGUYEN