This summary is intended for the experienced author who needs a quick reference for the form of a tag and for the restrictions on the TUTOR language commands. Each command includes a brief description of its purpose and a description of the tag. The commands are grouped into the following categories: (1) calculating, (2) data keeping, (3) judging, (4) managing sites, (5) presenting, (6) routing, and (7) sequencing. The appendices include a list of the limits associated with commands and alphabetical lists of systems variables and commands. (DAG)