This book is as much fun as I've had from a book in quite some time, even though the subject matters (grammar, logic, rhetoric) are usually thought of as serious if not outright grim.
The book was originally written for first-year students at college in the 1930s and 40s. It is simply amazing how much knowledge the teacher could assume from her students and build on. Fortunately, the current edition has been copiously footnoted for us. These and other updatings occasionally give an anachronistic flavor to the material, but more often highlight its timelessness.
After introductory chapters on the liberal arts and on language, two chapters on grammar (which are not dull summaries of long-familiar rules - in the 1930s these could be taken as given) lead smoothly into several chapters on logic, ending with a fine chapter summarizing fallacies. This material will be challenging, but a lot of fun, and for the most part presented with great clarity. (I have to admit, however, that after repeated readings I still do not understand why John is a rabbit.) Along the way you get to meet Barbara Celarent. The book concludes with a sadly brief chapter on composition and reading (i.e., rhetoric) which I wish I had read many years ago. An appendix gives a brief biography of the author, a nun who taught for many years at Saint Mary's College (South Bend). A lecture by Mortimer Adler crystallized her interest in the trivium.
Highly recommended - a 6-star book if ever there was one.