This document describes a 4-day training course on z/OS VSAM and Access Method Services. The course objectives are to understand VSAM data sets and clusters, use Access Method Services commands like IDCAMS to define, load, list, modify and delete catalog entries, code JCL to use VSAM and IDCAMS, and perform tasks like backing up, recovering and reorganizing VSAM and non-VSAM data sets. The target audience is those responsible for managing data sets using IDCAMS and VSAM. Prerequisites include experience with z/OS facilities and JCL. The course will cover various topics in depth including ICF catalogs, IDCAMS commands, buffering, integrity/security,