Professional Plone Development : Building robust, content-centric web applications with Plone 3, an open source Content Management System.
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Plone is an open-source content management framework, built on the top of the Zope application server and written in Python. As a ready-to-use Content Management System with a focus on usability, Plone makes it easy for content authors to create and edit web content. Plone is also used by developers