diff --git a/tex/.vscode/ltex.dictionary.en-US.txt b/tex/.vscode/ltex.dictionary.en-US.txt
index c55e3aa..4619b16 100644
--- a/tex/.vscode/ltex.dictionary.en-US.txt
+++ b/tex/.vscode/ltex.dictionary.en-US.txt
@@ -1,2 +1,4 @@
 Vatthauer
 mycase
+Coalgebras
+Coalgebra
diff --git a/tex/Makefile b/tex/Makefile
index a6b7fd5..63e8614 100644
--- a/tex/Makefile
+++ b/tex/Makefile
@@ -11,5 +11,5 @@ all: $(pdf)
 clean:
 	latexmk -C $(src)
 	rm -f $(wildcard *.out *.nls *.nlo *.bbl *.blg *-blx.bib *.run.xml *.bcf *.synctex.gz *.fdb_latexmk *.fls *.toc *.loe *.tdo *.bbl-SAVE-ERROR)
-	rm -f $(wildcard src/*.aux)
-	rm -rf $(wildcard _minted-main src/.auctex-auto _region_.prv)
+	rm -f $(wildcard sections/*.aux)
+	rm -rf $(wildcard _minted-main sections/.auctex-auto _region_.prv)
diff --git a/tex/main.pdf b/tex/main.pdf
deleted file mode 100644
index 85ab2fe..0000000
Binary files a/tex/main.pdf and /dev/null differ
diff --git a/tex/main.tex b/tex/main.tex
index 751dc81..bd7a373 100644
--- a/tex/main.tex
+++ b/tex/main.tex
@@ -110,6 +110,8 @@
 %%
 
 %% Contents
-
+\include{sections/01_introduction}
+\include{sections/02_categories}
+\include{sections/03_constructions}
 %%
 \end{document}
\ No newline at end of file
diff --git a/tex/sections/01_introduction.tex b/tex/sections/01_introduction.tex
new file mode 100644
index 0000000..e14a262
--- /dev/null
+++ b/tex/sections/01_introduction.tex
@@ -0,0 +1,4 @@
+\section{Introduction}
+
+\subsection{Functions}
+\subsection{Data Types}
\ No newline at end of file
diff --git a/tex/sections/02_categories.tex b/tex/sections/02_categories.tex
new file mode 100644
index 0000000..b9aebd7
--- /dev/null
+++ b/tex/sections/02_categories.tex
@@ -0,0 +1,9 @@
+\section{Category Theory}
+
+\subsection{Special Objects}
+\subsection{Duality}
+\subsection{Functors}
+\subsection{Natural Transformations}
+\subsection{Functor Algebras}
+\subsection{Functor Coalgebras}
+\subsection{(co)Limits} % chktex 36
\ No newline at end of file
diff --git a/tex/sections/02_datatypes.tex b/tex/sections/02_datatypes.tex
new file mode 100644
index 0000000..2241169
--- /dev/null
+++ b/tex/sections/02_datatypes.tex
@@ -0,0 +1 @@
+\section{Functions and Data}
diff --git a/tex/sections/03_constructions.tex b/tex/sections/03_constructions.tex
new file mode 100644
index 0000000..4190d84
--- /dev/null
+++ b/tex/sections/03_constructions.tex
@@ -0,0 +1,4 @@
+\section{Constructions}
+\subsection{CPO}
+\subsection{Initial Algebra Construction}
+\subsection{Terminal Coalgebra Construction}
\ No newline at end of file