- eBookRisk Management and Information Systems ControlSelwyn Classen
- eBookSecurity and Risk ManagementSelwyn Classen
- eBookIS Auditor - Process of AuditingSelwyn Classen
- eBookIncident ManagementSelwyn Classen
- eBookIdentity and Access ManagementSelwyn Classen
- eBookSecurity OperationsSelwyn Classen
- eBookSecurity EngineeringSelwyn Classen
- eBookAsset SecuritySelwyn Classen
- eBookScrum Master Fundamentals - FoundationsSelwyn Classen
- eBookCommunication and Network SecuritySelwyn Classen
- eBookSoftware Development SecuritySelwyn Classen
- eBookSecurity Assessment and TestingSelwyn Classen
- eBookScrum Master Fundamentals - Growing Yourself and Your TeamSelwyn Classen
- eBookSerien: Scrum Master FundamentalsSelwyn Classen
- eBookSerien: CISSPSelwyn Classen