This document provides an overview and agenda for a workshop on building mosaic datasets in ArcGIS. The workshop covers mosaic dataset basics, different types of mosaic datasets, configuration, geoprocessing tools, and serving mosaics as image services. It discusses how mosaic datasets organize and combine raster data of different resolutions, reference systems, and time periods. The workshop includes demonstrations of creating mosaic datasets, modifying footprints and boundaries, using raster functions, and setting properties for image services.