diff --git a/Francesco.Recipes.World/Constants/ContentType.cs b/Francesco.Recipes.World/Constants/ContentType.cs
new file mode 100644
index 0000000..8f7d090
--- /dev/null
+++ b/Francesco.Recipes.World/Constants/ContentType.cs
@@ -0,0 +1,7 @@
+namespace Francesco.Recipes.World.Constants
+{
+    public class ContentType
+    {
+        public const string Image = "image/";
+    }
+}
diff --git a/Francesco.Recipes.World/Constants/SortOrders.cs b/Francesco.Recipes.World/Constants/SortOrders.cs
new file mode 100644
index 0000000..479261c
--- /dev/null
+++ b/Francesco.Recipes.World/Constants/SortOrders.cs
@@ -0,0 +1,8 @@
+namespace Francesco.Recipes.World.Constants
+{
+    public class SortOrders
+    {
+        public const string Newest = "newest";
+        public const string Oldest = "oldest";
+    }
+}