diff --git a/Chapter_10/10-05_guest_book.py b/Chapter_10/10-05_guest_book.py
new file mode 100644
index 0000000..8777bdd
--- /dev/null
+++ b/Chapter_10/10-05_guest_book.py
@@ -0,0 +1,21 @@
+# Exercise 10-5 Guest Book
+# Learning Objective: Save by appending to a file. 
+
+from pathlib import Path
+
+path = Path('./Chapter_10/guest-book.txt')
+
+current_guest = ""
+
+guest_list = ""
+
+actively_asking = True
+while actively_asking:
+    current_guest = input("Enter a guest name, when done type (n/N):\n\t")
+    if current_guest.lower() != 'n':
+        guest_list += current_guest + "\n"
+    else:
+        actively_asking = False 
+path.write_text(guest_list)
+print("Guest book updated")
+
diff --git a/Chapter_10/guest-book.txt b/Chapter_10/guest-book.txt
new file mode 100644
index 0000000..ae3ceed
--- /dev/null
+++ b/Chapter_10/guest-book.txt
@@ -0,0 +1,7 @@
+James
+Jimmy
+David
+Dan
+Henry
+Izakura
+Paul