diff --git a/core/modules/book/src/Form/BookSettingsForm.php b/core/modules/book/src/Form/BookSettingsForm.php
index 0db0dc5..8097860 100644
--- a/core/modules/book/src/Form/BookSettingsForm.php
+++ b/core/modules/book/src/Form/BookSettingsForm.php
@@ -45,9 +45,10 @@ public function buildForm(array $form, FormStateInterface $form_state) {
     );
     $form['book_child_type'] = array(
       '#type' => 'radios',
-      '#title' => $this->t('Content type for child pages'),
+      '#title' => $this->t('Default content type for the %add-child-page link', array('%add-child-page' => $this->t('Add child page'))),
       '#default_value' => $config->get('child_type'),
       '#options' => $types,
+      '#description' => $this->t('Users with the %add-content-to-books-perm permission will have a shortcut %add-book-page underneeth each book node. This link will open a new node of the type selected above.', array('%add-content-to-books-perm' => $this->t('Add content and child pages to books'), '%add-book-page' => $this->t('Add child page'))),
       '#required' => TRUE,
     );
     $form['array_filter'] = array('#type' => 'value', '#value' => TRUE);