diff --git a/doc/src/sgml/backup.sgml b/doc/src/sgml/backup.sgml
index a461b0ac46a..dcbb2c86e24 100644
--- a/doc/src/sgml/backup.sgml
+++ b/doc/src/sgml/backup.sgml
@@ -428,7 +428,7 @@ tar -cf backup.tar /usr/local/pgsql/data
  </sect1>
 
  <sect1 id="continuous-archiving">
-  <title>Continuous Archiving and Point-In-Time Recovery (PITR)</title>
+  <title>Continuous Archiving and Point-in-Time Recovery (PITR)</title>
 
   <indexterm zone="backup">
    <primary>continuous archiving</primary>
diff --git a/doc/src/sgml/biblio.sgml b/doc/src/sgml/biblio.sgml
index edc59bdbb6a..e2cd69d2781 100644
--- a/doc/src/sgml/biblio.sgml
+++ b/doc/src/sgml/biblio.sgml
@@ -164,7 +164,7 @@
   </bibliodiv>
 
   <bibliodiv>
-   <title>PostgreSQL-Specific Documentation</title>
+   <title>PostgreSQL-specific Documentation</title>
    <para>This section is for related documentation.</para>
 
    <biblioentry id="SIM98">
diff --git a/doc/src/sgml/client-auth.sgml b/doc/src/sgml/client-auth.sgml
index f2f3a66ec9d..a7bb2cd9fe5 100644
--- a/doc/src/sgml/client-auth.sgml
+++ b/doc/src/sgml/client-auth.sgml
@@ -1198,7 +1198,7 @@ omicron         bryanh                  guest1
   </sect2>
 
   <sect2 id="auth-ident">
-   <title>Ident-Based Authentication</title>
+   <title>Ident-based Authentication</title>
 
    <indexterm>
     <primary>ident</primary>
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index 141430c56d2..9e08c5addd0 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -1108,7 +1108,7 @@ SET ENABLE_SEQSCAN TO OFF;
     </sect2>
 
     <sect2 id="runtime-config-resource-vacuum-cost">
-     <title>Cost-Based Vacuum Delay</title>
+     <title>Cost-based Vacuum Delay</title>
 
      <para>
       During the execution of <xref linkend="sql-vacuum">
@@ -3864,7 +3864,7 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
    </sect1>
 
    <sect1 id="runtime-config-statistics">
-    <title>Run-Time Statistics</title>
+    <title>Run-time Statistics</title>
 
     <sect2 id="runtime-config-statistics-collector">
      <title>Query and Index Statistics Collector</title>
diff --git a/doc/src/sgml/dfunc.sgml b/doc/src/sgml/dfunc.sgml
index 155207bd3e4..bc29fb18cb0 100644
--- a/doc/src/sgml/dfunc.sgml
+++ b/doc/src/sgml/dfunc.sgml
@@ -1,7 +1,7 @@
 <!-- doc/src/sgml/dfunc.sgml -->
 
 <sect2 id="dfunc">
- <title>Compiling and Linking Dynamically-Loaded Functions</title>
+ <title>Compiling and Linking Dynamically-loaded Functions</title>
 
  <para>
   Before you are able to use your
diff --git a/doc/src/sgml/earthdistance.sgml b/doc/src/sgml/earthdistance.sgml
index 2b753da31d9..b43907615a8 100644
--- a/doc/src/sgml/earthdistance.sgml
+++ b/doc/src/sgml/earthdistance.sgml
@@ -24,7 +24,7 @@
  </para>
 
  <sect2>
-  <title>Cube-Based Earth Distances</title>
+  <title>Cube-based Earth Distances</title>
 
   <para>
    Data is stored in cubes that are points (both corners are the same) using 3
@@ -59,7 +59,7 @@
   </para>
 
   <table id="earthdistance-cube-functions">
-   <title>Cube-Based Earthdistance Functions</title>
+   <title>Cube-based Earthdistance Functions</title>
    <tgroup cols="3">
     <thead>
      <row>
@@ -136,7 +136,7 @@
  </sect2>
 
  <sect2>
-  <title>Point-Based Earth Distances</title>
+  <title>Point-based Earth Distances</title>
 
   <para>
    The second part of the module relies on representing Earth locations as
@@ -152,7 +152,7 @@
   </para>
 
   <table id="earthdistance-point-operators">
-   <title>Point-Based Earthdistance Operators</title>
+   <title>Point-based Earthdistance Operators</title>
    <tgroup cols="3">
     <thead>
      <row>
diff --git a/doc/src/sgml/ecpg.sgml b/doc/src/sgml/ecpg.sgml
index 37bc43f49a7..157daff6176 100644
--- a/doc/src/sgml/ecpg.sgml
+++ b/doc/src/sgml/ecpg.sgml
@@ -1624,7 +1624,7 @@ while (1)
    </sect3>
 
    <sect3>
-    <title>User-Defined Base Types</title>
+    <title>User-defined Base Types</title>
 
     <para>
      New user-defined base types are not directly supported by ECPG.
@@ -7931,7 +7931,7 @@ EXEC SQL CLOSE DATABASE;
   </sect2>
 
   <sect2 id="ecpg-informix-sqlda">
-   <title>Informix-Compatible SQLDA Descriptor Areas</title>
+   <title>Informix-compatible SQLDA Descriptor Areas</title>
    <para>
     Informix-compatible mode supports a different structure than the one described in
     <xref linkend="ecpg-sqlda-descriptors">. See below:
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index ed2039c1cae..28ee62a1de4 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -4350,7 +4350,7 @@ SELECT foo FROM regexp_split_to_table('the quick brown fox', E'\\s*') AS foo;
    </note>
 
    <table id="posix-character-entry-escapes-table">
-    <title>Regular Expression Character-Entry Escapes</title>
+    <title>Regular Expression Character-entry Escapes</title>
 
     <tgroup cols="2">
      <thead>
@@ -4478,7 +4478,7 @@ SELECT foo FROM regexp_split_to_table('the quick brown fox', E'\\s*') AS foo;
    </para>
 
    <table id="posix-class-shorthand-escapes-table">
-    <title>Regular Expression Class-Shorthand Escapes</title>
+    <title>Regular Expression Class-shorthand Escapes</title>
 
     <tgroup cols="2">
      <thead>
@@ -4672,7 +4672,7 @@ SELECT foo FROM regexp_split_to_table('the quick brown fox', E'\\s*') AS foo;
    </para>
 
    <table id="posix-embedded-options-table">
-    <title>ARE Embedded-Option Letters</title>
+    <title>ARE Embedded-option Letters</title>
 
     <tgroup cols="2">
      <thead>
diff --git a/doc/src/sgml/installation.sgml b/doc/src/sgml/installation.sgml
index aa2c4a63025..f1386b7b5d4 100644
--- a/doc/src/sgml/installation.sgml
+++ b/doc/src/sgml/installation.sgml
@@ -1524,7 +1524,7 @@ PostgreSQL, contrib and HTML documentation successfully made. Ready to install.
    </para>
 
    <formalpara>
-    <title>Client-Only installation:</title>
+    <title>Client-only installation:</title>
     <para>
      If you want to install only the client applications and
      interface libraries, then you can use these commands:
@@ -1951,7 +1951,7 @@ kill `cat /usr/local/pgsql/data/postmaster.pid`
  </sect1>
 
  <sect1 id="installation-platform-notes">
-  <title>Platform-Specific Notes</title>
+  <title>Platform-specific Notes</title>
 
   <para>
    This section documents additional platform-specific issues
diff --git a/doc/src/sgml/lobj.sgml b/doc/src/sgml/lobj.sgml
index 46c627b4f4f..eebc0d6aca1 100644
--- a/doc/src/sgml/lobj.sgml
+++ b/doc/src/sgml/lobj.sgml
@@ -407,7 +407,7 @@ int lo_unlink(PGconn *conn, Oid lobjId);
 </sect1>
 
 <sect1 id="lo-funcs">
-<title>Server-Side Functions</title>
+<title>Server-side Functions</title>
 
   <para>
    There are server-side functions callable from SQL that correspond to
diff --git a/doc/src/sgml/mvcc.sgml b/doc/src/sgml/mvcc.sgml
index 734bb48634f..152b7466b8b 100644
--- a/doc/src/sgml/mvcc.sgml
+++ b/doc/src/sgml/mvcc.sgml
@@ -546,7 +546,7 @@ SELECT SUM(value) FROM mytab WHERE class = 2;
    </para>
 
   <sect2 id="locking-tables">
-   <title>Table-Level Locks</title>
+   <title>Table-level Locks</title>
 
    <indexterm zone="locking-tables">
     <primary>LOCK</primary>
@@ -892,7 +892,7 @@ SELECT SUM(value) FROM mytab WHERE class = 2;
    </sect2>
 
    <sect2 id="locking-rows">
-    <title>Row-Level Locks</title>
+    <title>Row-level Locks</title>
 
     <para>
      In addition to table-level locks, there are row-level locks, which
diff --git a/doc/src/sgml/nls.sgml b/doc/src/sgml/nls.sgml
index f92d5893a1a..778bb4b044c 100644
--- a/doc/src/sgml/nls.sgml
+++ b/doc/src/sgml/nls.sgml
@@ -440,7 +440,7 @@ fprintf(stderr, gettext("panic level %d\n"), lvl);
   </sect2>
 
   <sect2 id="nls-guidelines">
-   <title>Message-Writing Guidelines</title>
+   <title>Message-writing Guidelines</title>
 
   <para>
    Here are some guidelines for writing messages that are easily
diff --git a/doc/src/sgml/plpgsql.sgml b/doc/src/sgml/plpgsql.sgml
index 0a0f904e227..a2601e6bc89 100644
--- a/doc/src/sgml/plpgsql.sgml
+++ b/doc/src/sgml/plpgsql.sgml
@@ -874,7 +874,7 @@ PERFORM create_mv('cs_session_page_requests_mv', my_query);
    </sect2>
 
    <sect2 id="plpgsql-statements-sql-onerow">
-    <title>Executing a Query with a Single-Row Result</title>
+    <title>Executing a Query with a Single-row Result</title>
 
     <indexterm zone="plpgsql-statements-sql-onerow">
      <primary>SELECT INTO</primary>
diff --git a/doc/src/sgml/plpython.sgml b/doc/src/sgml/plpython.sgml
index 9fc8808776c..befd6afb15e 100644
--- a/doc/src/sgml/plpython.sgml
+++ b/doc/src/sgml/plpython.sgml
@@ -596,7 +596,7 @@ $$ LANGUAGE plpythonu;
   </sect2>
 
   <sect2>
-   <title>Set-Returning Functions</title>
+   <title>Set-returning Functions</title>
   <para>
    A <application>PL/Python</application> function can also return sets of
    scalar or composite types. There are several ways to achieve this because
diff --git a/doc/src/sgml/protocol.sgml b/doc/src/sgml/protocol.sgml
index 0775b7a8f4e..73c05edacb4 100644
--- a/doc/src/sgml/protocol.sgml
+++ b/doc/src/sgml/protocol.sgml
@@ -210,7 +210,7 @@
   </para>
 
   <sect2>
-   <title>Start-Up</title>
+   <title>Start-up</title>
 
    <para>
     To begin a session, a frontend opens a connection to the server and sends
diff --git a/doc/src/sgml/ref/create_table.sgml b/doc/src/sgml/ref/create_table.sgml
index c1cfee5d692..5bffe303364 100644
--- a/doc/src/sgml/ref/create_table.sgml
+++ b/doc/src/sgml/ref/create_table.sgml
@@ -1369,7 +1369,7 @@ CREATE TABLE employees OF employee_type (
   </refsect2>
 
   <refsect2>
-   <title>Zero-Column Tables</title>
+   <title>Zero-column Tables</title>
 
    <para>
     <productname>PostgreSQL</productname> allows a table of no columns
diff --git a/doc/src/sgml/release-9.1.sgml b/doc/src/sgml/release-9.1.sgml
index c6c0e1b5f6f..6c201b61e6a 100644
--- a/doc/src/sgml/release-9.1.sgml
+++ b/doc/src/sgml/release-9.1.sgml
@@ -408,7 +408,7 @@
       </itemizedlist>
     </sect3>
     <sect3>
-      <title>Built-In Functions</title>
+      <title>Built-in Functions</title>
       <itemizedlist>
 
        <listitem>
diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml
index 226d616a768..5161c8c5f00 100644
--- a/doc/src/sgml/runtime.sgml
+++ b/doc/src/sgml/runtime.sgml
@@ -2099,7 +2099,7 @@ pg_dumpall -p 5432 | psql -d postgres -p 5433
   </sect2>
 
   <sect2 id="ssl-certificate-creation">
-   <title>Creating a Self-Signed Certificate</title>
+   <title>Creating a Self-signed Certificate</title>
 
    <para>
     To create a quick self-signed certificate for the server, use the
diff --git a/doc/src/sgml/syntax.sgml b/doc/src/sgml/syntax.sgml
index 482e08a031b..004205f1265 100644
--- a/doc/src/sgml/syntax.sgml
+++ b/doc/src/sgml/syntax.sgml
@@ -330,7 +330,7 @@ SELECT 'foo'      'bar';
    </sect3>
 
    <sect3 id="sql-syntax-strings-escape">
-    <title>String Constants with C-Style Escapes</title>
+    <title>String Constants with C-style Escapes</title>
 
      <indexterm zone="sql-syntax-strings-escape">
       <primary>escape string syntax</primary>
@@ -551,7 +551,7 @@ U&amp;'d!0061t!+000061' UESCAPE '!'
    </sect3>
 
    <sect3 id="sql-syntax-dollar-quoting">
-    <title>Dollar-Quoted String Constants</title>
+    <title>Dollar-quoted String Constants</title>
 
      <indexterm>
       <primary>dollar quoting</primary>
@@ -631,7 +631,7 @@ $function$
    </sect3>
 
    <sect3 id="sql-syntax-bit-strings">
-    <title>Bit-String Constants</title>
+    <title>Bit-string Constants</title>
 
     <indexterm zone="sql-syntax-bit-strings">
      <primary>bit string</primary>
diff --git a/doc/src/sgml/xaggr.sgml b/doc/src/sgml/xaggr.sgml
index 2dce97fe304..c9b9b56a0c9 100644
--- a/doc/src/sgml/xaggr.sgml
+++ b/doc/src/sgml/xaggr.sgml
@@ -1,7 +1,7 @@
 <!-- doc/src/sgml/xaggr.sgml -->
 
  <sect1 id="xaggr">
-  <title>User-Defined Aggregates</title>
+  <title>User-defined Aggregates</title>
 
   <indexterm zone="xaggr">
    <primary>aggregate function</primary>
diff --git a/doc/src/sgml/xfunc.sgml b/doc/src/sgml/xfunc.sgml
index 25e577331a7..4ad50ec0cb5 100644
--- a/doc/src/sgml/xfunc.sgml
+++ b/doc/src/sgml/xfunc.sgml
@@ -1,7 +1,7 @@
 <!-- doc/src/sgml/xfunc.sgml -->
 
  <sect1 id="xfunc">
-  <title>User-Defined Functions</title>
+  <title>User-defined Functions</title>
 
   <indexterm zone="xfunc">
    <primary>function</primary>
@@ -1754,7 +1754,7 @@ memcpy(destination->data, buffer, 40);
     </para>
 
      <table tocentry="1" id="xfunc-c-type-table">
-      <title>Equivalent C Types for Built-In SQL Types</title>
+      <title>Equivalent C Types for Built-in SQL Types</title>
       <tgroup cols="3">
        <thead>
         <row>
@@ -2660,7 +2660,7 @@ include $(PGXS)
 
 
    <sect2>
-    <title>Composite-Type Arguments</title>
+    <title>Composite-type Arguments</title>
 
     <para>
      Composite types do not have a fixed layout like C structures.
diff --git a/doc/src/sgml/xoper.sgml b/doc/src/sgml/xoper.sgml
index ea64a152f7e..1e6efd58e40 100644
--- a/doc/src/sgml/xoper.sgml
+++ b/doc/src/sgml/xoper.sgml
@@ -1,7 +1,7 @@
 <!-- doc/src/sgml/xoper.sgml -->
 
  <sect1 id="xoper">
-  <title>User-Defined Operators</title>
+  <title>User-defined Operators</title>
 
   <indexterm zone="xoper">
    <primary>operator</primary>
diff --git a/doc/src/sgml/xtypes.sgml b/doc/src/sgml/xtypes.sgml
index 972cc76bf9b..a76b035f192 100644
--- a/doc/src/sgml/xtypes.sgml
+++ b/doc/src/sgml/xtypes.sgml
@@ -1,7 +1,7 @@
 <!-- doc/src/sgml/xtypes.sgml -->
 
  <sect1 id="xtypes">
-  <title>User-Defined Types</title>
+  <title>User-defined Types</title>
 
   <indexterm zone="xtypes">
    <primary>data type</primary>