diff --git a/src/calibre/ebooks/mobi/tbs_periodicals.rst b/src/calibre/ebooks/mobi/tbs_periodicals.rst
index c2f4edc2ab..21e50aa6a9 100644
--- a/src/calibre/ebooks/mobi/tbs_periodicals.rst
+++ b/src/calibre/ebooks/mobi/tbs_periodicals.rst
@@ -311,7 +311,7 @@ In such a record there is a transition from one section to the next. As such the
         Last article of ending section w.r.t. starting section offset (fvwi): 12 [15 absolute]
         Flags (always 8?): 8
         Article index at start of record or first article index, relative to parent section (fvwi): 13 [16 absolute]
-        Number of article nodes in the record belonging ot the last section (byte): 4
+        Number of article nodes in the record belonging to the last section (byte): 4
 
 
 Ending record
diff --git a/src/calibre/ebooks/rtf2xml/override_table.py b/src/calibre/ebooks/rtf2xml/override_table.py
index 77c8b34553..60bffecf4a 100644
--- a/src/calibre/ebooks/rtf2xml/override_table.py
+++ b/src/calibre/ebooks/rtf2xml/override_table.py
@@ -106,7 +106,7 @@ class OverrideTable:
     def __parse_lines(self, line):
         '''
         Requires:
-            line --ine to parse
+            line -- line to parse
         Returns:
             nothing
         Logic:
diff --git a/src/calibre/web/feeds/news.py b/src/calibre/web/feeds/news.py
index 62cd532541..563a70743c 100644
--- a/src/calibre/web/feeds/news.py
+++ b/src/calibre/web/feeds/news.py
@@ -242,7 +242,7 @@ class BasicNewsRecipe(Recipe):
     #:
     #:    {
     #:     name      : 'tag name',   #e.g. 'div'
-    #:     attrs     : a dictionary, #e.g. {'class': 'advertisment'}
+    #:     attrs     : a dictionary, #e.g. {'class': 'advertisement'}
     #:    }
     #:
     #: All keys are optional. For a full explanation of the search criteria, see