diff --git a/src/pyj/read_book/prefs/layout.pyj b/src/pyj/read_book/prefs/layout.pyj
index 5b188cea28..818bca0b3a 100644
--- a/src/pyj/read_book/prefs/layout.pyj
+++ b/src/pyj/read_book/prefs/layout.pyj
@@ -9,6 +9,7 @@ from elementmaker import E
 
 CONTAINER = unique_id('reader-page-layout')
 MARGINS = unique_id('reader-page-margins')
+READ_MODE = unique_id('read-mode')
 
 add_extra_css(def():
     sel = '#' + MARGINS
@@ -21,13 +22,27 @@ def create_layout_panel(container):
     container.appendChild(E.div(id=CONTAINER))
     container = container.lastChild
     sd = get_session_data()
-    container.appendChild(E.p(_('Change the page margins below'), style='margin:1ex 1em; padding: 1ex 0'))
+    container.appendChild(E.p(_('Change the page margins below'), style='margin:1ex 1rem; padding: 1ex 0'))
     container.appendChild(E.table(id=MARGINS))
     labels = {'top':_('Top:'), 'bottom':_('Bottom:'), 'left':_('Left:'), 'right':_('Right:')}
     for which in 'top bottom left right'.split(' '):
         container.lastChild.appendChild(E.tr(
             E.td(labels[which]), E.td(E.input(type='number', min='0', step='1', name=which, value=str(sd.get('margin_'+which))))
         ))
+
+    container.appendChild(E.div(
+        _('Choose the page layout mode. In paged mode, the text is split up into individual pages, as in a paper book. In flow mode'
+          ' text is presented as one long scrolling page, as in web browsers.'),
+        style='margin: 1ex 1rem; padding-top:1ex; border-top: solid 1px'))
+    container.appendChild(E.div(id=READ_MODE, style='margin: 1ex 1rem; display: flex; justify-content: space-between'))
+    rm = sd.get('read_mode')
+    rm = 'flow' if rm is 'flow' else 'paged'
+    def rb(name, text):
+        d = container.lastChild
+        d.appendChild(E.label(E.input(type='radio', name='page-layout-mode', checked=rm is name), text))
+    rb('paged', _('Paged mode'))
+    rb('flow', _('Flow mode'))
+
 develop = create_layout_panel
 
 
@@ -43,5 +58,12 @@ def commit_layout(onchange, container):
         if val is not sd.get('margin_' + which):
             was_changed = True
             sd.set('margin_' + which, val)
+    rm = sd.get('read_mode')
+    rm = 'flow' if rm is 'flow' else 'paged'
+    crm = 'paged' if element(READ_MODE, 'input').checked else 'flow'
+    if rm is not crm:
+        was_changed = True
+        sd.set('read_mode', crm)
+
     if was_changed:
         onchange()