<?xml version="1.0" ?>
<!DOCTYPE chapter>
<chapter xmlns="http://docbook.org/ns/docbook"
         version="4.5">
  <title>What is Leek?</title>

  <para>
    Leek is an append-only database management system. A database is a
    collection of journals that can only be appended onto. Journal entries
    cannot be modified or deleted without recreating the entire journal.
    Furthermore, entries can be retrieved from journals by scanning and folding
    them.
  </para>
</chapter>
