diff --git a/l10n.yaml b/l10n.yaml
index 15338f2d..148a1fbd 100644
--- a/l10n.yaml
+++ b/l10n.yaml
@@ -1,3 +1,4 @@
 arb-dir: lib/l10n
 template-arb-file: app_en.arb
 output-localization-file: app_localizations.dart
+untranslated-messages-file: lib/l10n/untranslated-messages.txt
diff --git a/lib/l10n/README.md b/lib/l10n/README.md
new file mode 100644
index 00000000..f7c4e9f8
--- /dev/null
+++ b/lib/l10n/README.md
@@ -0,0 +1,22 @@
+# Localization
+
+Each file stores the localized strings for a single language. The file is named with the corresponding ISO language code (e.g., app_**en**.arb for English). For languages with variants, an optional script code and/or country code may be followed (e.g., app_zh_**Hans**.arb, app_zh_**Hant**.arb). Check out the [flutter documentation](https://flutter.dev/docs/development/accessibility-and-localization/internationalization#advanced-topics-for-further-customization) for more details.
+
+## Help with translations
+
+Each item in an ARB file is formatted like the following.
+```
+"exampleString": "Hello World",
+"@exampleString": {
+	"description": "An example string"
+}
+```
+In the above example, only the `"Hello World"` part needs to be translated. `exampleString` is the key used to access this string and must not be modified. The `@exampleString` block provides metadata for this string and is only intended to be read by the translators, it's not necessary to be translated either.
+
+### For a new language
+
+`app_en.arb` contains all strings that needed to be localized.
+
+### For an existing language
+
+`untranslated-messages.txt` contains a list of untranslated strings for each language.
diff --git a/lib/l10n/untranslated-messages.txt b/lib/l10n/untranslated-messages.txt
new file mode 100644
index 00000000..854fdbab
--- /dev/null
+++ b/lib/l10n/untranslated-messages.txt
@@ -0,0 +1,33 @@
+{
+  "el": [
+    "albumTrashLabel",
+    "restoreTooltip",
+    "restoreSelectedProcessingNotification",
+    "restoreSelectedSuccessNotification",
+    "restoreSelectedFailureNotification",
+    "restoreProcessingNotification",
+    "restoreSuccessNotification",
+    "restoreFailureNotification",
+    "deletePermanentlyTooltip",
+    "deletePermanentlyConfirmationDialogTitle",
+    "deletePermanentlyConfirmationDialogContent"
+  ],
+
+  "es": [
+    "searchTooltip",
+    "albumSearchTextFieldHint",
+    "clearTooltip",
+    "listNoResultsText",
+    "albumTrashLabel",
+    "restoreTooltip",
+    "restoreSelectedProcessingNotification",
+    "restoreSelectedSuccessNotification",
+    "restoreSelectedFailureNotification",
+    "restoreProcessingNotification",
+    "restoreSuccessNotification",
+    "restoreFailureNotification",
+    "deletePermanentlyTooltip",
+    "deletePermanentlyConfirmationDialogTitle",
+    "deletePermanentlyConfirmationDialogContent"
+  ]
+}