diff --git a/src/calibre/devices/apple/driver.py b/src/calibre/devices/apple/driver.py
index ba2f11e1fa..fd7d915119 100644
--- a/src/calibre/devices/apple/driver.py
+++ b/src/calibre/devices/apple/driver.py
@@ -122,8 +122,8 @@ class DriverBase(DeviceConfig, DevicePlugin):
 
     EXTRA_CUSTOMIZATION_MESSAGE = [
             _('Use Series as Category in iTunes/iBooks') +
-            ':::' + _('Enable to use the series name as the iTunes Genre, '
-                    'iBooks Category'),
+            ':::' + _('Enable to use the series name as the iTunes genre, '
+                    'iBooks category'),
             _('Cache covers from iTunes/iBooks') + ':::' + _(
                 'Enable to cache and display covers from iTunes/iBooks'),
             _(u'"Copy files to iTunes Media folder %s" is enabled in iTunes Preferences|Advanced') % u'\u2026' + ':::' + _(
diff --git a/src/calibre/devices/interface.py b/src/calibre/devices/interface.py
index 82bf98c54f..1b3b7cb654 100644
--- a/src/calibre/devices/interface.py
+++ b/src/calibre/devices/interface.py
@@ -696,7 +696,7 @@ class DevicePlugin(Plugin):
         name is ignored in cases where the device uses a template to generate
         the file name, which most do. The second value in the returned tuple
         indicated whether the format is future-dated. Return True if it is,
-        otherwise return False. Calibre will display a dialog to the user
+        otherwise return False. calibre will display a dialog to the user
         listing all future dated books.
 
         Extremely important: this method is called on the GUI thread. It must
diff --git a/src/calibre/gui2/catalog/catalog_epub_mobi.ui b/src/calibre/gui2/catalog/catalog_epub_mobi.ui
index e00f4bb07a..20ab501c14 100644
--- a/src/calibre/gui2/catalog/catalog_epub_mobi.ui
+++ b/src/calibre/gui2/catalog/catalog_epub_mobi.ui
@@ -130,7 +130,7 @@
         <item>
          <widget class="QCheckBox" name="generate_genres">
           <property name="toolTip">
-           <string>List of books, sorted by Genre</string>
+           <string>List of books, sorted by genre</string>
           </property>
           <property name="text">
            <string>&amp;Genres</string>
@@ -140,7 +140,7 @@
         <item>
          <widget class="QComboBox" name="genre_source_field">
           <property name="toolTip">
-           <string>Field containing Genres</string>
+           <string>Field containing genres</string>
           </property>
          </widget>
         </item>
@@ -160,7 +160,7 @@
            <string>List of books, sorted by date added to calibre</string>
           </property>
           <property name="text">
-           <string>&amp;Recently Added</string>
+           <string>&amp;Recently added</string>
           </property>
          </widget>
         </item>
diff --git a/src/calibre/gui2/dialogs/plugin_updater.py b/src/calibre/gui2/dialogs/plugin_updater.py
index 28fbbcb30a..917b9d4cb4 100644
--- a/src/calibre/gui2/dialogs/plugin_updater.py
+++ b/src/calibre/gui2/dialogs/plugin_updater.py
@@ -276,7 +276,7 @@ class DisplayPluginModel(QAbstractTableModel):
     def __init__(self, display_plugins):
         QAbstractTableModel.__init__(self)
         self.display_plugins = display_plugins
-        self.headers = map(unicode, [_('Plugin Name'), _('Donate'), _('Status'), _('Installed'),
+        self.headers = map(unicode, [_('Plugin name'), _('Donate'), _('Status'), _('Installed'),
                                       _('Available'), _('Released'), _('calibre'), _('Author')])
 
     def rowCount(self, *args):
@@ -467,7 +467,7 @@ class PluginUpdaterDialog(SizePersistedDialog):
         layout = QVBoxLayout(self)
         self.setLayout(layout)
         title_layout = ImageTitleLayout(self, 'plugins/plugin_updater.png',
-                _('User Plugins'))
+                _('User plugins'))
         layout.addLayout(title_layout)
 
         header_layout = QHBoxLayout()
diff --git a/src/calibre/gui2/preferences/template_functions.py b/src/calibre/gui2/preferences/template_functions.py
index 9b67465ab5..b13df9d2aa 100644
--- a/src/calibre/gui2/preferences/template_functions.py
+++ b/src/calibre/gui2/preferences/template_functions.py
@@ -40,12 +40,12 @@ class ConfigWidget(ConfigWidgetBase, Ui_Form):
         template evaluation.</li>
         <li><b>kwargs</b>: a dictionary of metadata. Field values are in this
         dictionary.
-        <li><b>mi</b>: a Metadata instance. Used to get field information.
+        <li><b>mi</b>: a <i>Metadata</i> instance. Used to get field information.
         This parameter can be None in some cases, such as when evaluating
         non-book templates.</li>
         <li><b>locals</b>: the local variables assigned to by the current
         template program.</li>
-        <li><b>your parameters</b>: You must supply one or more formal
+        <li><b>your parameters</b>: you must supply one or more formal
         parameters. The number must match the arg count box, unless arg count is
         -1 (variable number or arguments), in which case the last argument must
         be *args. At least one argument is required, and is usually the value of
diff --git a/src/calibre/gui2/preferences/template_functions.ui b/src/calibre/gui2/preferences/template_functions.ui
index a368da11fb..2b92543ad9 100644
--- a/src/calibre/gui2/preferences/template_functions.ui
+++ b/src/calibre/gui2/preferences/template_functions.ui
@@ -51,7 +51,7 @@
           <string/>
          </property>
          <property name="text">
-          <string>Arg &amp;count:</string>
+          <string>Argument &amp;count:</string>
          </property>
          <property name="buddy">
           <cstring>argument_count</cstring>
diff --git a/src/calibre/gui2/tweak_book/ui.py b/src/calibre/gui2/tweak_book/ui.py
index 366a9cc268..b0acdd218c 100644
--- a/src/calibre/gui2/tweak_book/ui.py
+++ b/src/calibre/gui2/tweak_book/ui.py
@@ -497,7 +497,7 @@ class Main(MainWindow):
         self.action_multiple_split = treg(
             'document-split.png', _('&Split at multiple locations'), self.boss.multisplit, 'multisplit', (), _(
                 'Split HTML file at multiple locations'))
-        self.action_compare_book = treg('diff.png', _('&Compare to another book'), self.boss.compare_book, 'compare-book', (), _(
+        self.action_compare_book = treg('diff.png', _('Compare to &another book'), self.boss.compare_book, 'compare-book', (), _(
             'Compare to another book'))
         self.action_manage_snippets = treg(
             'snippets.png', _('Manage &Snippets'), self.boss.manage_snippets, 'manage-snippets', (), _(
diff --git a/src/calibre/library/catalogs/epub_mobi.py b/src/calibre/library/catalogs/epub_mobi.py
index d7444adea9..2dbba57782 100644
--- a/src/calibre/library/catalogs/epub_mobi.py
+++ b/src/calibre/library/catalogs/epub_mobi.py
@@ -126,7 +126,7 @@ class EPUB_MOBI(CatalogPlugin):
                           default=_('Tags'),
                           dest='genre_source_field',
                           action=None,
-                          help=_("Source field for Genres section.\n"
+                          help=_("Source field for 'Genres' section.\n"
                           "Default: '%default'\n"
                           "Applies to: AZW3, EPUB, MOBI output formats")),
                    Option('--header-note-source-field',
diff --git a/src/calibre/library/catalogs/epub_mobi_builder.py b/src/calibre/library/catalogs/epub_mobi_builder.py
index 24f7906e09..95a92d5ea6 100644
--- a/src/calibre/library/catalogs/epub_mobi_builder.py
+++ b/src/calibre/library/catalogs/epub_mobi_builder.py
@@ -3887,7 +3887,7 @@ class CatalogBuilder(object):
          ncx_soup (file): updated
         """
 
-        self.update_progress_full_step(_("NCX for Genres"))
+        self.update_progress_full_step(_("NCX for genres"))
 
         if not len(self.genres):
             self.opts.log.warn(" No genres found\n"