diff --git a/module001-ch004-openstack-architecture.xml b/module001-ch004-openstack-architecture.xml
index ec26a8e7..3b82388d 100644
--- a/module001-ch004-openstack-architecture.xml
+++ b/module001-ch004-openstack-architecture.xml
@@ -189,7 +189,7 @@
             in use, networks available and projects. Theoretically,
             OpenStack Nova can support any database supported by
             SQL-Alchemy but the only databases currently being widely
-            used are sqlite3 (only appropriate for test and
+            used are SQLite3 (only appropriate for test and
             development work), MySQL and PostgreSQL.</para>
         </listitem>
         <listitem>
@@ -259,7 +259,7 @@
         <listitem>
           <para>A database to store the image metadata. Like Nova, you
             can choose your database depending on your preference (but
-            most people use MySQL or SQlite).</para>
+            most people use MySQL or SQLite).</para>
         </listitem>
         <listitem>
           <para>A storage repository for the actual image files. In
@@ -286,7 +286,7 @@
         OpenStack policy, catalog, token and authentication.</para>
       <itemizedlist>
         <listitem>
-          <para>keystone handles API requests as well as providing
+          <para>Keystone handles API requests as well as providing
             configurable catalog, policy, token and identity
             services.</para>
         </listitem>