Data reduction manuals and recipes can be found at the CASAguides website. Of particular interest will be the ALMA CASAguides available here.
You may find information on tutorials/workshops at
North America: NRAO Community Outreach Events or NRAO Science Meetings
Europe: European ALMA Regional Centre
East Asia: Tutorials and Workshops
Please contact your appropriate ARC (or ARC node in Europe) if you want more detailed information.