As many Plone users already know, one of the most useful features that comes out of the box with Plone is the workflow of the contents. Plone comes not just with predifined workflow definitions but with a very powerful workflow engine which let you customize the life cycle of your content in the way you like more. You can manage security, task assignment and publishing state of your content, you can support the work of your editors and improve their work experience. Althoug it is a simple tool many Plone users still think about portal_workflow as a very obscure object. This session will try to explain many common and creative uses of the workflow functionalities in the newest releases of Plone, with lessons learned, common use cases and practical examples.