diff --git a/Chapter4.md b/Chapter4.md
new file mode 100644
index 00000000..a2283023
--- /dev/null
+++ b/Chapter4.md
@@ -0,0 +1 @@
+This is a new file that Tom Keane added to learn how to use github.
diff --git a/Chapter4II.md b/Chapter4II.md
new file mode 100644
index 00000000..5a7679fa
--- /dev/null
+++ b/Chapter4II.md
@@ -0,0 +1 @@
+This is another new file that Tom Keane created.
diff --git a/another-file b/another-file
new file mode 100644
index 00000000..ef934c58
--- /dev/null
+++ b/another-file
@@ -0,0 +1 @@
+This file was created after the repo was forked.
diff --git a/pullRequest.md b/pullRequest.md
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index 00000000..561ba443
--- /dev/null
+++ b/pullRequest.md
@@ -0,0 +1 @@
+Testing pull requests.