diff --git a/manual/catalogs.rst b/manual/catalogs.rst
index ac97fa7a66..e13e78fb35 100644
--- a/manual/catalogs.rst
+++ b/manual/catalogs.rst
@@ -116,7 +116,7 @@ Other options
 
 :guilabel:`Thumb width` specifies a width preference for cover thumbnails included with Descriptions pages. Thumbnails are cached to improve performance. To experiment with different widths, try generating a catalog with just a few books until you've determined your preferred width, then generate your full catalog. The first time a catalog is generated with a new thumbnail width, performance will be slower, but subsequent builds of the catalog will take advantage of the thumbnail cache.
 
-:guilabel:`Merge with comments` specifies a custom column whose content will be non-destructively merged with the Comments metadata during catalog generation. For example, you might have a custom column :guilabel:`Author bio` that you'd like to append to the Comments metadata. You can choose to insert the custom column contents *before or after* the Comments section, and optionally separate the appended content with a horizontal rule separator. Eligible custom column types include ``text, comments, and composite``.
+:guilabel:`Merge with comments` specifies a custom column whose content will be non-destructively merged with the comments metadata during catalog generation. For example, you might have a custom column :guilabel:`Author bio` that you'd like to append to the comments metadata. You can choose to insert the custom column contents *before or after* the comments section, and optionally separate the appended content with a horizontal rule separator. Eligible custom column types include ``text, comments, and composite``.
 
 .. _Custom catalog covers:
 
diff --git a/manual/viewer.rst b/manual/viewer.rst
index 2949652bf0..5c806fd721 100644
--- a/manual/viewer.rst
+++ b/manual/viewer.rst
@@ -80,7 +80,7 @@ can enter these locations under :guilabel:`Go to->Location` in the viewer
 controls.
 
 There is a URL you can copy to the clipboard and paste into other programs
-or documents. Clicking on this URL will open the book in the calibre viewer at
+or documents. Clicking on this URL will open the book in the calibre E-book viewer at
 the current location.
 
 If you click on links inside the e-book to take you to different parts of the
diff --git a/src/calibre/gui2/dialogs/quickview.py b/src/calibre/gui2/dialogs/quickview.py
index a93c3dc02a..0e4612dfe9 100644
--- a/src/calibre/gui2/dialogs/quickview.py
+++ b/src/calibre/gui2/dialogs/quickview.py
@@ -597,7 +597,7 @@ class Quickview(QDialog, Ui_Quickview):
         tt = ('<p>' + _(
               'Double click on a book to change the selection in the library view or '
               'change the column shown in the left-hand panel. '
-              'Shift- or Control- double click to edit the metadata of a book, '
+              'Shift- or Ctrl- double click to edit the metadata of a book, '
               'which also changes the selected book.'
               ) + '</p>')
         for row, b in enumerate(books):
diff --git a/src/calibre/gui2/main.py b/src/calibre/gui2/main.py
index ed861cd237..a09c0f721e 100644
--- a/src/calibre/gui2/main.py
+++ b/src/calibre/gui2/main.py
@@ -49,7 +49,7 @@ different actions, than just adding books. For example:
 calibre://view-book/test_library/1842/epub
 
 Will open the book with id 1842 in the EPUB format from the library
-"test_library" in the calibre viewer. Library names are the folder names of the
+"test_library" in the calibre E-book viewer. Library names are the folder names of the
 libraries with spaces replaced by underscores. A full description of the
 various URL based actions is in the User Manual.
 '''))