Ossa Ostensa: A Proven System for Demystifying Latin, Book 2

The book is structured as a Latin workbook and seems to target to teachers or students who are learning from a teacher. The grammar topics covered fall well into what one might consider intermediate Latin. (Book 1 covers beginning Latin.) Explanations are to the point but a bit terse. For the most part, illustrative examples that are given do the job but perhaps more could be given. Each lesson has a translation exercise (with analyses questions) for a passage in classical Latin as well as one in post-classical Latin. I wish there were at least two passages of each kind to make the price more palatable.