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+
+<h1>Account Groups</h1>
+
+Typically accounts are arranged in a tree.  Typically,
+Accounts that are not leaf accounts have a number that ends in zero.
+For example:
+
+<pre>
+        300             Expenses
+         |
+         +--310         Living Expenses
+         |   |
+         |   +--311     Beer
+         |   |
+         |   +--312     Cable
+         |
+         +--320         Business Expenses
+         |   |
+         |   +--321     8-inch Floppies
+         |   |
+         :   :
+
+
+</pre>