The Data Protection Officer Handbook by Douwe Korff, Marie Georges
From the abstract: This Handbook was prepared for and is used in the EU‐funded “T4DATA” training‐of-trainers programme. […] Although produced for the T4DATA programme that focusses on DPOs in the
public sector, it is hoped that the Handbook will be useful also to
anyone else interested in the application of the GDPR, including DPOs in
the private sector. It is made publicly available under a “Creative
Commons” (CC) License.