--- a/doc/book/en/tutorials/advanced/part03_bfss.rst	Wed Mar 30 14:03:10 2011 +0200
+++ b/doc/book/en/tutorials/advanced/part03_bfss.rst	Wed Mar 30 14:55:14 2011 +0200
@@ -38,7 +38,7 @@
 
   * how we built the hook's registry identifier (`__regid__`): you can introduce
     'namespaces' by using there python module like naming identifiers. This is
-    especially import for hooks where you usually want a new custom hook, not
+    especially important for hooks where you usually want a new custom hook, not
     overriding / specializing an existant one, but the concept may be applied to
     any application objects