diff --git a/source/ch-chapter-title.ptx b/source/ch-1-Probability.ptx
similarity index 64%
rename from source/ch-chapter-title.ptx
rename to source/ch-1-Probability.ptx
index f824667..97dc575 100644
--- a/source/ch-chapter-title.ptx
+++ b/source/ch-1-Probability.ptx
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<chapter xml:id="ch-chapter-title" xmlns:xi="http://www.w3.org/2001/XInclude">
-  <title>Chapter Title</title>
+<chapter xml:id="ch-Probability" xmlns:xi="http://www.w3.org/2001/XInclude">
+  <title>Probability Theory</title>
 
   <introduction>
     <p> Text before the first section. </p>
diff --git a/source/ch-2-Random-Variables.ptx b/source/ch-2-Random-Variables.ptx
new file mode 100644
index 0000000..276a919
--- /dev/null
+++ b/source/ch-2-Random-Variables.ptx
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<chapter xml:id="ch-Random-Variables" xmlns:xi="http://www.w3.org/2001/XInclude">
+  <title>Random Variables</title>
+
+  <introduction>
+    <p> Text before the first section. </p>
+  </introduction>
+
+  <!-- include sections -->
+  <!-- <xi:include href="sec-section-name.ptx" /> -->
+
+</chapter>
\ No newline at end of file
diff --git a/source/ch-3-Expected-Value.ptx b/source/ch-3-Expected-Value.ptx
new file mode 100644
index 0000000..2ac3035
--- /dev/null
+++ b/source/ch-3-Expected-Value.ptx
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<chapter xml:id="ch-Expected-Value" xmlns:xi="http://www.w3.org/2001/XInclude">
+  <title>Expected Value and Variance</title>
+
+  <introduction>
+    <p> Text before the first section. </p>
+  </introduction>
+
+  <!-- include sections -->
+  <!-- <xi:include href="sec-section-name.ptx" /> -->
+
+</chapter>
\ No newline at end of file
diff --git a/source/ch-4-Confidence-Intervals.ptx b/source/ch-4-Confidence-Intervals.ptx
new file mode 100644
index 0000000..c279be4
--- /dev/null
+++ b/source/ch-4-Confidence-Intervals.ptx
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<chapter xml:id="ch-Confidence-Intervals" xmlns:xi="http://www.w3.org/2001/XInclude">
+  <title>Confidence Intervals</title>
+
+  <introduction>
+    <p> Text before the first section. </p>
+  </introduction>
+
+  <!-- include sections -->
+  <!-- <xi:include href="sec-section-name.ptx" /> -->
+
+</chapter>
\ No newline at end of file
diff --git a/source/ch-5-Hypothesis-Testing.ptx b/source/ch-5-Hypothesis-Testing.ptx
new file mode 100644
index 0000000..eda79b0
--- /dev/null
+++ b/source/ch-5-Hypothesis-Testing.ptx
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<chapter xml:id="ch-Hypothesis-Testing" xmlns:xi="http://www.w3.org/2001/XInclude">
+  <title>Hypothesis Testing</title>
+
+  <introduction>
+    <p> Text before the first section. </p>
+  </introduction>
+
+  <!-- include sections -->
+  <!-- <xi:include href="sec-section-name.ptx" /> -->
+
+</chapter>
\ No newline at end of file
diff --git a/source/ch-6-Linear-Regression.ptx b/source/ch-6-Linear-Regression.ptx
new file mode 100644
index 0000000..6c65cd9
--- /dev/null
+++ b/source/ch-6-Linear-Regression.ptx
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<chapter xml:id="ch-Linear-Regression" xmlns:xi="http://www.w3.org/2001/XInclude">
+  <title>Linear Regression</title>
+
+  <introduction>
+    <p> Text before the first section. </p>
+  </introduction>
+
+  <!-- include sections -->
+  <!-- <xi:include href="sec-section-name.ptx" /> -->
+
+</chapter>
\ No newline at end of file
diff --git a/source/main.ptx b/source/main.ptx
index 356f02a..912b183 100644
--- a/source/main.ptx
+++ b/source/main.ptx
@@ -5,14 +5,18 @@
   <xi:include href="./docinfo.ptx" />
 
   <book xml:id="my-great-book">
-    <title>Andy's Book</title>
-    <subtitle>An example to get you started</subtitle>
+    <title>Math 1044 Notes</title>
 
     <!-- Include frontmatter -->
     <xi:include href="./frontmatter.ptx" />
 
     <!-- Include chapters -->
-    <xi:include href="./ch-chapter-title.ptx" />
+    <xi:include href="./ch-1-Probability.ptx" />
+    <xi:include href="./ch-2-Random-Variables.ptx" />
+    <xi:include href="./ch-3-Expected-Value.ptx" />
+    <xi:include href="./ch-4-Confidence-Intervals.ptx" />
+    <xi:include href="./ch-5-Hypothesis-Testing.ptx" />
+    <xi:include href="./ch-6-Linear-Regression.ptx" />
 
 
     <!-- Include backmatter -->