In which core ITIL publication can you find detailed descriptions of service catalogue management, information security management, and supplier management?

Service Strategy covers strategic-level processes such as Service Portfolio Management, Financial Management for IT Services, and Business Relationship Management, not design-phase processes.

The ITIL Service Design core publication covers the design of new or changed services and contains a comprehensive set of processes including Service Catalogue Management, Information Security Management, Supplier Management, Availability Management, and Capacity Management. These processes collectively ensure that services are designed to satisfy business requirements, meet security standards, and manage supplier relationships before the service is transitioned into live operation.

Service Transition covers processes such as Change Management, Release and Deployment Management, and Service Validation and Testing, which relate to moving services into production rather than designing them.

Service Operation covers processes such as Incident Management, Problem Management, Event Management, and Access Management, which relate to day-to-day running of live services.