diff --git a/PostgreSQL/README.md b/PostgreSQL/README.md
index b28100a..28ef453 100644
--- a/PostgreSQL/README.md
+++ b/PostgreSQL/README.md
@@ -1,4 +1,18 @@
-Common-Data-Model
+Common-Data-Model / PostgreSQL
 =================
 
-Specifications and related files for the Common Data Model
+This folder contains the SQL scripts for PostgreSQL. 
+
+In order to create your instantiation of the Common Data Model, we recommend following these steps:
+
+1. Create an empty schema.
+
+2. Execute the script `OMOP CDM ddl - PostgreSQL.sql` to create the tables and fields.
+
+3. Load your data into the schema.
+
+4. Execute the script `OMOP CDM constraints - PostgreSQL.sql` to add the constraints (primary and foreign keys). 
+
+5. Execute the script `OMOP CDM indexes required - PostgreSQL.sql` to add the minimum set of indexes we recommend.
+
+Note: you could also apply the constraints and/or the indexes before loading the data, but this will slow down the insertion of the data considerably.