diff --git a/bookstore/src/main/resources/application.properties b/bookstore/src/main/resources/application.properties
index f30cf78..f9b48f2 100644
--- a/bookstore/src/main/resources/application.properties
+++ b/bookstore/src/main/resources/application.properties
@@ -1,3 +1,5 @@
+# Pekka Helenius <fincer89@hotmail.com>, Fjordtek 2020
+
 # Default HTTP TCP port number for this server application
 # Do not set this value below 1024 as these TCP/UDP ports are privileged, requiring root permissions
 #
diff --git a/bookstore/src/main/resources/messages.properties b/bookstore/src/main/resources/messages.properties
index 27f4610..7d411c6 100644
--- a/bookstore/src/main/resources/messages.properties
+++ b/bookstore/src/main/resources/messages.properties
@@ -1,3 +1,5 @@
+# Pekka Helenius <fincer89@hotmail.com>, Fjordtek 2020
+
 # Message keys with values.
 # Prepare environment for possible multi-language support
 
diff --git a/bookstore/src/main/resources/static/css/bookstore.css b/bookstore/src/main/resources/static/css/bookstore.css
index 977833f..fd99392 100644
--- a/bookstore/src/main/resources/static/css/bookstore.css
+++ b/bookstore/src/main/resources/static/css/bookstore.css
@@ -1,3 +1,5 @@
+/* Pekka Helenius <fincer89@hotmail.com>, Fjordtek 2020 */
+
 .bookform-section {
 	border-top: 1px dotted #888;
 	padding-top: 1.5em;