diff --git a/src/pyj/read_book/prefs/layout.pyj b/src/pyj/read_book/prefs/layout.pyj
index 818bca0b3a..e30b7e99eb 100644
--- a/src/pyj/read_book/prefs/layout.pyj
+++ b/src/pyj/read_book/prefs/layout.pyj
@@ -10,6 +10,7 @@ from elementmaker import E
 CONTAINER = unique_id('reader-page-layout')
 MARGINS = unique_id('reader-page-margins')
 READ_MODE = unique_id('read-mode')
+COLS = unique_id('cols-per-screen')
 
 add_extra_css(def():
     sel = '#' + MARGINS
@@ -22,7 +23,7 @@ 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 1rem; padding: 1ex 0'))
+    container.appendChild(E.p(_('Change the page margins (in pixels) 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(' '):
@@ -43,6 +44,16 @@ def create_layout_panel(container):
     rb('paged', _('Paged mode'))
     rb('flow', _('Flow mode'))
 
+    container.appendChild(E.div(
+        _('In paged mode, control the number of pages per screen. A setting of zero means the number of pages is'
+          ' set based on the screen size.'),
+        style='margin: 1ex 1rem; padding-top:1ex; border-top: solid 1px'))
+    cps = sd.get('columns_per_screen')
+    container.appendChild(E.table(style='margin: 1ex 1rem', id=COLS,
+        E.tr(E.td(_('In portrait orientation:')), E.td(E.input(type='number', name='portrait',   min='0', step='1', max='20', value=str(cps.portrait)))),
+        E.tr(E.td(_('In landscape orientation:')), E.td(E.input(type='number', name='landscape', min='0', step='1', max='20', value=str(cps.landscape)))),
+    ))
+
 develop = create_layout_panel
 
 
@@ -64,6 +75,17 @@ def commit_layout(onchange, container):
     if rm is not crm:
         was_changed = True
         sd.set('read_mode', crm)
+    cps = sd.get('columns_per_screen')
+    for which in ('portrait', 'landscape'):
+        inp = element(COLS, 'input[name={}]'.format(which))
+        try:
+            val = int(inp.value)
+        except:
+            continue
+        if cps[which] is not val:
+            cps[which] = val
+            sd.set('columns_per_screen', cps)
+            was_changed = True
 
     if was_changed:
         onchange()