This is NOT, as the listing implies, a workbook to accompany the text book "Introductory Russian Grammar." It is a laboratory manual to accompany the tape set. If you are working with the tapes, then this very small (42 pages, 8.5" X 5.5" format) manual might be of some use, but if you are working primarily from the book, it will not give you anything you don't already have in the text.