diff -r 76ab3c71aff2 -r c67bcee93248 doc/book/devweb/facets.rst
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+The facets system
+-----------------
+
+Facets allow to restrict searches according to some user friendly criterias.
+CubicWeb has a builtin `facet`_ system to define restrictions `filters`_ really
+as easily as possible.
+
+Here is an exemple of the facets rendering picked from our
+http://www.cubicweb.org web site:
+
+.. image:: ../images/facet_overview.png
+
+Facets will appear on each page presenting more than one entity that may be
+filtered according to some known criteria.
+
+Base classes for facets
+~~~~~~~~~~~~~~~~~~~~~~~
+.. automodule:: cubicweb.web.facet
+
+
+.. _facet: http://en.wikipedia.org/wiki/Faceted_browser
+.. _filters: http://www.cubicweb.org/blogentry/154152
+