The ITIL 4 Create, Deliver and Support (CDS) reference and revision guide is one of five ITIL 4 revision aids published by TSO, following on from the ITIL 4 Foundation revision guide. It summarizes the 'core' IT service management activities and focuses on the co-creation of value with the customer through leadership, team structure learning and incremental improvement. Key topics include planning and building service value streams, understanding key management requirements, plus how to create, deliver and support services. It will enable IT practitioners to deliver innovative reliable IT services and improve their quality of service. This pocket guide is an aid for revision and preparation for taking the ITIL 4 Managing Professional: CDS certification, and post-certification it is a quick useful reference. It summarizes key topics for exam preparation, includes key figures from the core guidance, provides an examination overview, tips for taking the exam and a summary table linking learning outcomes to references in the text and to core guidance.