diff --git a/README.md b/README.md
index e28f993..0bf424c 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Shadow mapping](https://github.com/mtrebi/rasterizer/blob/master/README.md#shadow-mapping)  <br/> 
 &nbsp;[Gallery](https://github.com/mtrebi/rasterizer/blob/master/README.md#gallery)  <br/> 
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[Cool images](https://github.com/mtrebi/rasterizer/blob/master/README.md#cool-images)  <br/> 
+&nbsp;[External dependencies](https://github.com/mtrebi/rasterizer/blob/master/README.md#external-dependencies)  <br/> 
 &nbsp;[Future work](https://github.com/mtrebi/rasterizer/blob/master/README.md#future-work)  <br/> 
 &nbsp;[References](https://github.com/mtrebi/rasterizer/blob/master/README.md#references)  <br/> 
 
@@ -59,6 +60,8 @@ cmake ..
 make
 ```
 
+*Note: The CMake build also builds a needed library called EasyBMP to work with images*
+
 # Rasterization
 
 Checkout my blog posts about [rasterization](https://gamesandgraphicsdev.blogspot.com.es/2017/02/rasterization-i-overview.html) to understand step by step how it works.
@@ -329,6 +332,10 @@ Checkout the rest of cool images at [docs/images/gallery/cool_but_wrong](https:/
 * Model loading using .OBJ files
 * Render to a window using some external library to achieve real time rendering (SFML)
 
+# External dependencies
+
+This project uses a external library called [EasyBMP](http://easybmp.sourceforge.net/) to read/write textures (diffuse, specular, normals...).
+
 # References
 
 Fletcher Dunn, Ian Parberry: “3D Math Primer for Graphics and Game Development"