diff --git a/Programming In General.pdf b/Programming In General.pdf
index 89a0f70..87fc553 100644
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diff --git a/Programming In General.tex b/Programming In General.tex
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--- a/Programming In General.tex	
+++ b/Programming In General.tex	
@@ -187,6 +187,18 @@ To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/
 \input{"./5 - Design Patterns/1.1 - Singleton"}
 \vfill
 \pagebreak
+\section{Factory}
+\input{"./5 - Design Patterns/1.2 - Factory"}
+\vfill
+\pagebreak
+\section{Observer}
+\input{"./5 - Design Patterns/1.3 - Observer"}
+\vfill
+\pagebreak
+\section{State}
+\input{"./5 - Design Patterns/1.4 - State"}
+\vfill
+\pagebreak
 \chapter{Data Structures}
 \input{"./6 - Data Structures/Data Structures"}
 \vfill