diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 6261c8f..21c1f61 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -21,6 +21,22 @@
               "title": "12. Iris recognition"
             }
           },
+          {
+            "id": "3f200bec3c1f0b56",
+            "type": "leaf",
+            "state": {
+              "type": "pdf",
+              "state": {
+                "file": "Biometric Systems/slides/LEZIONE10_Iris recognition.pdf",
+                "page": 17,
+                "left": -288,
+                "top": 2,
+                "zoom": 0.9
+              },
+              "icon": "lucide-file-text",
+              "title": "LEZIONE10_Iris recognition"
+            }
+          },
           {
             "id": "e85dead89a57b629",
             "type": "leaf",
@@ -270,6 +286,8 @@
   },
   "active": "1fb39a1dfc7b5200",
   "lastOpenFiles": [
+    "Biometric Systems/slides/LEZIONE10_Iris recognition.pdf",
+    "Biometric Systems/notes/12. Iris recognition.md",
     "Biometric Systems/notes/11. Fingerprints.md",
     "Biometric Systems/notes/8 Face anti spoofing.md",
     "Biometric Systems/notes/3. Recognition Reliability.md",
@@ -282,8 +300,6 @@
     "Foundation of data science/notes/9 K-Nearest Neighbors.md",
     "Foundation of data science/notes/9 XGBoost.md",
     "Foundation of data science/notes/9 Random Forest.md",
-    "Biometric Systems/notes/12. Iris recognition.md",
-    "Biometric Systems/slides/LEZIONE10_Iris recognition.pdf",
     "Biometric Systems/slides/LEZIONE8_Face antispoofing.pdf",
     "Biometric Systems/slides/LEZIONE11_Fingerprints.pdf",
     "Biometric Systems/notes/9. Ear recognition.md",