In (mass) digitization it is common practice to work according to guidelines such as FADGI or Metamorfoze, to measure and monitor daily targets. Therefore it is common to implement some kind of quality assurance to assess if target values are met. There also is a huge field of digital preservation to ensure data can be stored appropriately. However, what about visual inspection of all those produced digital images? Why would we need to inspect the images? Visual inspection costs time, so how can we make it efficient enough, while maintaining high quality standards? How can we create a workflow for it? In this paper I will try to answer those questions based on experience from past years with a successfully implemented QA-workflow in the Netherlands.