diff --git a/src/calibre/customize/profiles.py b/src/calibre/customize/profiles.py
index 7bd8976971..5eae676ab6 100644
--- a/src/calibre/customize/profiles.py
+++ b/src/calibre/customize/profiles.py
@@ -705,7 +705,7 @@ class KindlePaperWhiteOutput(KindleOutput):
 
     name = 'Kindle PaperWhite'
     short_name = 'kindle_pw'
-    description = _('This profile is intended for the Amazon Kindle PaperWhite 1 and 2')
+    description = _('This profile is intended for the Amazon Kindle Paperwhite 1 and 2')
 
     # Screen size is a best guess
     screen_size               = (658, 940)
@@ -730,7 +730,7 @@ class KindlePaperWhite3Output(KindleVoyageOutput):
 
     name = 'Kindle PaperWhite 3'
     short_name = 'kindle_pw3'
-    description = _('This profile is intended for the Amazon Kindle PaperWhite 3 and above')
+    description = _('This profile is intended for the Amazon Kindle Paperwhite 3 and above')
     # Screen size is currently just the spec size, actual renderable area will
     # depend on someone with the device doing tests.
     screen_size               = (1072, 1430)
@@ -742,7 +742,7 @@ class KindleOasisOutput(KindlePaperWhite3Output):
 
     name = 'Kindle Oasis'
     short_name = 'kindle_oasis'
-    description = _('This profile is intended for the Amazon Kindle Oasis 2017, PaperWhite 2021 and above')
+    description = _('This profile is intended for the Amazon Kindle Oasis 2017, Paperwhite 2021 and above')
     # Screen size is currently just the spec size, actual renderable area will
     # depend on someone with the device doing tests.
     screen_size               = (1264, 1680)
diff --git a/src/calibre/devices/kindle/driver.py b/src/calibre/devices/kindle/driver.py
index 16c0bbd935..fe9e4f411f 100644
--- a/src/calibre/devices/kindle/driver.py
+++ b/src/calibre/devices/kindle/driver.py
@@ -328,7 +328,7 @@ class KINDLE(USBMS):
 class KINDLE2(KINDLE):
 
     name           = 'Kindle 2/3/4/Touch/PaperWhite/Voyage Device Interface'
-    description    = _('Communicate with the Kindle 2/3/4/Touch/PaperWhite/Voyage e-book reader.')
+    description    = _('Communicate with the Kindle 2/3/4/Touch/Paperwhite/Voyage e-book reader.')
 
     FORMATS     = ['azw', 'mobi', 'azw3', 'prc', 'azw1', 'tpz', 'azw4', 'kfx', 'pobi', 'pdf', 'txt']
     DELETE_EXTS    = KINDLE.DELETE_EXTS + ['.mbp1', '.mbs', '.sdr', '.han']
diff --git a/src/calibre/gui2/dialogs/exim.py b/src/calibre/gui2/dialogs/exim.py
index c27dd0a4c5..e503913293 100644
--- a/src/calibre/gui2/dialogs/exim.py
+++ b/src/calibre/gui2/dialogs/exim.py
@@ -75,7 +75,7 @@ class RunAction(QDialog):
 
     def __init__(self, title, err_msg, action, parent=None):
         QDialog.__init__(self, parent)
-        self.setWindowTitle(_('Working please wait...'))
+        self.setWindowTitle(_('Working, please wait...'))
         self.title, self.action, self.tb, self.err_msg = title, action, None, err_msg
         self.abort = Event()
         self.setup_ui()