diff --git a/Chapter four - monero.md b/Chapter four - monero.md
index c6876114..8a36a22b 100644
--- a/Chapter four - monero.md	
+++ b/Chapter four - monero.md	
@@ -2,3 +2,17 @@
 
 ![The Monero circuit](monero.png)
 
+**Monero** [[1]](https://www.getmonero.org/) is decentralized cryptocurrency, meaning it is secure digital cash  operated by a network of users. Transactions are confirmed by  distributed consensus and then immutably recorded on the **blockchain** [[2]](https://en.wikipedia.org/wiki/Blockchain).  Third-parties do not need to be trusted to keep your Monero safe. Monero is *totally* untraceable. 
+
+Let's do some considerations before start with a deep dive into this network. First of all **M** is its logotype, simple is the concurrency of the Machine, what we start to explain in the last chapter. But does it can be converted into classical money? Yes for sure here it is the exchange graphic:
+
+![monero exchange value](monero-euro-value.png)
+
+​                            
+
+### External Links
+
+1. https://www.getmonero.org/
+2. https://en.wikipedia.org/wiki/Blockchain
+3. 
+
diff --git a/monero-euro-value.png b/monero-euro-value.png
new file mode 100644
index 00000000..870aae4e
Binary files /dev/null and b/monero-euro-value.png differ