diff --git a/documentation/dev-manual/dev-manual-newbie.xml b/documentation/dev-manual/dev-manual-newbie.xml
index 1da05e20df..0cf9f3110f 100644
--- a/documentation/dev-manual/dev-manual-newbie.xml
+++ b/documentation/dev-manual/dev-manual-newbie.xml
@@ -197,10 +197,19 @@
         While some of these terms are universal, the list includes them just in case:
         <itemizedlist>
             <listitem><para><emphasis>Append Files:</emphasis> Files that append build information to 
-                a recipe file.  
-                Information in append files overrides the information in the similarly-named recipe file.
-                Append files use the <filename>.bbappend</filename> filename suffix.
-                </para></listitem>
+                a recipe file.
+                Append files are known as BitBake append files and <filename>.bbappend</filename> files.
+                The Yocto Project build system expects every append file to have a corresponding and 
+                underlying recipe (<filename>.bb</filename>) file.
+                Furthermore, the append file and the underlying recipe must have the same root filename.
+                The filenames can differ only in the file type suffix used (e.g. 
+                <filename>formfactor_0.0.bb</filename> and <filename>formfactor_0.0.bbappend</filename>).
+                </para>
+                <para>Information in append files overrides the information in the similarly-named recipe file.
+                For examples of <filename>.bbappend</filename> file in use, see the
+                "<link linkend='using-bbappend-files'>Using .bbappend Files</link>" and 
+                "<link linkend='changing-recipes-kernel'>Changing <filename>recipes-kernel</filename></link>"
+                sections.</para></listitem>
             <listitem><para><emphasis>BitBake:</emphasis> The task executor and scheduler used by 
                 the Yocto Project to build images. 
                 For more information on BitBake, see the <ulink url='http://bitbake.berlios.de/manual/'>