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diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 25171ce..8bd52c9 100644
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+++ b/.obsidian/workspace.json
@@ -537,6 +537,7 @@
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+    "Attachments/Pasted image 20250117115604.png",
     "Attachments/Pasted image 20250117112716.png",
     "0 Journal/0 Daily/2025-01-17.sync-conflict-20250117-094333-LIUMLEB.md",
     "Attachments/Pasted image 20250117104237.png",
@@ -557,7 +558,6 @@
     "Attachments/Pasted image 20250116163115.png",
     "Temporary/Untitled 1.md",
     "Attachments/Pasted image 20250116161534.png",
-    "Attachments/Pasted image 20250116161217.png",
     "Temporary/Untitled.md",
     "5 Media/0 Books/Design Patterns by null.md",
     "5 Media/0 Books/null by null.md",
diff --git a/5 Media/8 Courses/Design Patterns by Construx.md b/5 Media/8 Courses/Design Patterns by Construx.md
index 74c9097..dcd3f95 100644
--- a/5 Media/8 Courses/Design Patterns by Construx.md	
+++ b/5 Media/8 Courses/Design Patterns by Construx.md	
@@ -203,6 +203,21 @@ Patterns are not mutually exclusive and can be used on top of each other.
 - ![[Pasted image 20250117112716.png]]
 	- use an adapter base class (PCLinuxGraphicsAdapter)
 - There is no guarantee that it is only the syntax that changes, maybe you need to adapt the semantics as well. 
+- Object vs class adaption.
+	- In multiple inheritance classes like C++ you inherit from both Target and Adaptee
+	- ![[Pasted image 20250117115604.png]]
+- Relationship to fundamental design principles
+	- design to invariants/desing for change
+	- encapsulation
+	- liskov substitutability
+	- high cohesion/loose coupling
+
+
+> [!Important] Key Points
+> - minimizes code changes
+> - portability across multiple providers
+> - two versions: object vs class adapter
+
 ### Façade
 
 ### Bridge
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