This is an excellent grammar/writing series, originally produced for use in public schools.
Handbooks are Canadian, full-colour, and reusable as a reference book/textbook. Each handbook is geared towards two or more grade levels.
Workbooks (sometimes called sourcebooks) are American, consumable/not reproducible. There are sometimes American examples for sentences (e.g. a sentence about Johnny Appleseed) and also very slight differences in page numbers possible. But it is still an easy-to-use and thorough grammar/writing program. (We sold out of the Canadian version of workbooks years ago.)
Items are new, not used. In recent years, this series was changed/updated to some extent in the USA. The books we sell on this page are older, harder-to-find editions.
These are close-to-wholesale prices and will not be reduced further. Very few are left.