diff --git a/app/constants.php b/app/constants.php
index 50dda97..9b00310 100644
--- a/app/constants.php
+++ b/app/constants.php
@@ -46,3 +46,15 @@ defined('ENABLE_CRONJOB_HTTP_ACCESS') or define('ENABLE_CRONJOB_HTTP_ACCESS', tr
 defined('BEANSTALKD_HOST') or define('BEANSTALKD_HOST', '127.0.0.1');
 defined('BEANSTALKD_QUEUE') or define('BEANSTALKD_QUEUE', 'feeds');
 defined('BEANSTALKD_TTL') or define('BEANSTALKD_TTL', 120);
+
+defined('READING_REMOVE_READ_ITEMS') or define('READING_REMOVE_READ_ITEMS', 15);
+defined('READING_REMOVE_UNREAD_ITEMS') or define('READING_REMOVE_UNREAD_ITEMS', 45);
+defined('READING_ITEMS_PER_PAGE') or define('READING_ITEMS_PER_PAGE', 100);
+defined('READING_SORTING_DIRECTION') or define('READING_SORTING_DIRECTION', 'desc');
+defined('READING_DISPLAY_MODE') or define('READING_DISPLAY_MODE', 'summaries');
+defined('READING_ITEM_TITLE_LINK') or define('READING_ITEM_TITLE_LINK', 'full');
+defined('READING_NOTHING_READ_REDIRECT') or define('READING_NOTHING_READ_REDIRECT', 'feeds');
+defined('READING_FRONTEND_UPDATECHECK_INTERVAL') or define('READING_FRONTEND_UPDATECHECK_INTERVAL', 10);
+defined('READING_ORIGINAL_MARKS_READ') or define('READING_ORIGINAL_MARKS_READ', 1);
+defined('READING_NOCONTENT') or define('READING_NOCONTENT', 0);
+defined('READING_FAVICONS') or define('READING_FAVICONS', 1);
diff --git a/app/models/config.php b/app/models/config.php
index adf3d20..dbd6336 100644
--- a/app/models/config.php
+++ b/app/models/config.php
@@ -155,21 +155,21 @@ function get_default_values()
         'language'                      => 'en_US',
         'timezone'                      => 'UTC',
         'theme'                         => 'original',
-        'autoflush'                     => 15,
-        'autoflush_unread'              => 45,
-        'frontend_updatecheck_interval' => 10,
-        'favicons'                      => 1,
-        'nocontent'                     => 0,
+        'autoflush'                     => READING_REMOVE_READ_ITEMS,
+        'autoflush_unread'              => READING_REMOVE_UNREAD_ITEMS,
+        'frontend_updatecheck_interval' => READING_FRONTEND_UPDATECHECK_INTERVAL,
+        'favicons'                      => READING_FAVICONS,
+        'nocontent'                     => READING_NOCONTENT,
         'image_proxy'                   => 0,
-        'original_marks_read'           => 1,
+        'original_marks_read'           => READING_ORIGINAL_MARKS_READ,
         'instapaper_enabled'            => 0,
         'pinboard_enabled'              => 0,
         'pinboard_tags'                 => 'miniflux',
-        'items_per_page'                => 100,
-        'items_display_mode'            => 'summaries',
-        'items_sorting_direction'       => 'desc',
-        'redirect_nothing_to_read'      => 'feeds',
-        'item_title_link'               => 'full',
+        'items_per_page'                => READING_ITEMS_PER_PAGE,
+        'items_display_mode'            => READING_DISPLAY_MODE,
+        'items_sorting_direction'       => READING_SORTING_DIRECTION,
+        'redirect_nothing_to_read'      => READING_NOTHING_READ_REDIRECT,
+        'item_title_link'               => READING_ITEM_TITLE_LINK,
     );
 }
 
diff --git a/config.default.php b/config.default.php
index f2b676a..716b3cb 100644
--- a/config.default.php
+++ b/config.default.php
@@ -72,3 +72,59 @@ define('ENABLE_XFRAME', true);
 
 // Enable/disable HSTS HTTP header
 define('ENABLE_HSTS', true);
+
+// Reading preferences
+
+// Remove automatically read items. Values:
+// 0 - Never
+// -1 - Immediately
+// 1 - After 1 day
+// 5 - After 5 days
+// 15 - After 15 days
+// 30 - After 30 days
+define('READING_REMOVE_READ_ITEMS', 15);
+
+// Remove automatically unread items. Values:
+// 0 - Never
+// 15 - After 15 days
+// 45 - After 45 days
+// 60 - After 60 days
+define('READING_REMOVE_UNREAD_ITEMS', 45);
+
+// Items per page. Values: 10, 20, 30, 50, 100, 150, 200, 250
+define('READING_ITEMS_PER_PAGE', 100);
+
+// Default sorting order for items. Values:
+// 'asc' - Older items first
+// 'desc' - Most recent first
+define('READING_SORTING_DIRECTION', 'desc');
+
+// Display items on lists. Values:
+// 'titles' - Titles
+// 'summaries' - Summaries
+// 'full' - Full contents
+define('READING_DISPLAY_MODE', 'summaries');
+
+// Item title link. Values:
+// 'original' - Original
+// 'full' - Full contents
+define('READING_ITEM_TITLE_LINK', 'full');
+
+// When there is nothing to read, redirect me to this page. Values:
+// 'feeds' - Subscriptions
+// 'history' - History
+// 'bookmarks' - Bookmarks
+// 'nowhere' - Do not redirect me
+define('READING_NOTHING_READ_REDIRECT', 'feeds');
+
+// Refresh interval in minutes for unread counter.
+define('READING_FRONTEND_UPDATECHECK_INTERVAL', 10);
+
+// Original link marks article as read. Values: 0, 1
+define('READING_ORIGINAL_MARKS_READ', 1);
+
+// Do not fetch the content of articles. Values: 0, 1
+define('READING_NOCONTENT', 0);
+
+// Download favicons.Values: 0, 1
+define('READING_FAVICONS', 1);