diff --git a/docs/files/README.md b/docs/files/README.md
new file mode 100644
index 0000000..909602e
--- /dev/null
+++ b/docs/files/README.md
@@ -0,0 +1,3 @@
+# Reading and Writing Files
+
+{{todo("Write this section")}}
diff --git a/docs/interaction/README.md b/docs/interaction/README.md
new file mode 100644
index 0000000..7ed28da
--- /dev/null
+++ b/docs/interaction/README.md
@@ -0,0 +1,18 @@
+# Interacting with the User
+
+{{todo("Write this section")}}
+
+
+
+## Command line options
+
+argv
+
+getopt
+
+## User input
+
+
+## Sanitisation
+
+## More?
diff --git a/docs/selection/README.md b/docs/selection/README.md
new file mode 100644
index 0000000..73fab86
--- /dev/null
+++ b/docs/selection/README.md
@@ -0,0 +1,3 @@
+# Selection
+
+{{todo("Write this section")}}
diff --git a/mkdocs.yml b/mkdocs.yml
index a1feab8..934643f 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -10,6 +10,7 @@ nav:
     - 'TODO - Pip': ./
   - 'Values and Types': 'values-and-types/README.md'
   - 'Conditionals': 'conditionals/README.md'
+  - 'Selection': 'selection/'
   - 'Iteration':
     - 'Introduction to iteration': 'iteration/intro-to-iteration.md'
     - 'For Loops': 'iteration/for-loops/README.md'
@@ -19,9 +20,11 @@ nav:
     - 'Introduction to functions': 'functions/intro-to-functions.md'
     - 'User created functions': 'functions/user-functions/README.md'
     - 'Built-in functions': 'functions/built-in-functions/README.md'
-  - 'Tetsing': 'testing/'
+  - 'Interacting with the User': 'interaction/'
+  - 'Testing': 'testing/'
   - 'Documentation': 'documentation/'
-  - 'Representation of Data': './data/'
+  - 'Representation of Data': 'data/'
+  - 'Reading and Writing Files': 'files/'
   - 'Algorithms': 'algorithms/'
   - 'Classes and Objects': 'oo/'
   - 'Interacting with the Network': 'network/'