- IT Service Management Based on ITIL® V3 - A Pocket Guide (English version) (ITSM Library)
- IT Governance based on Cobit 4.1: A Management Guide (ITSM Library)
- The Togaf (R) Standard, Version 9.2 - A Pocket Guide
- The Togaf (R) Standard, Version 9.2
- Projectmanagement op basis van ICB versie 4 – 4de herziene druk – IPMA B, IPMA C, IPMA-D , IPMA PMO