diff --git a/src/MDConcTitleTypes.php b/src/MDConcTitleTypes.php
new file mode 100644
index 0000000..2c45751
--- /dev/null
+++ b/src/MDConcTitleTypes.php
@@ -0,0 +1,35 @@
+<?PHP
+/**
+ * Constains lists for resolving title type names to their internally used names.
+ * ones.
+ *
+ * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+ */
+declare(strict_types = 1);
+
+/**
+ * Constains lists for resolving title type names to their internally used names.
+ */
+final class MDConcTitleTypes {
+
+    const TITLE_TYPES = [
+
+        // Empty
+        "" => "",
+
+        // Scientific names
+        "Science" => "Science",
+
+        // Everyday speech
+        "Everyday speech" => "Everyday speech",
+        "Alltagssprache" => "Everyday speech",
+
+        // Colloquialisms
+        "Colloquial speech" => "Colloquial speech",
+
+        // Names in dialect
+        "Dialect" => "Dialect",
+
+    ];
+
+}