This series is highly recommended.
I recommend this series to anyone I know who is studying a language. These are the best, simplest and most easily understood grammar books I have ever come across. They have helped me tremendously.
Letter from a student.
The conceptual and visual presentation of the material is simple and clear. There are numerous diagrams and charts. Although grammar points are isolated for the sake of presentation, there are many cross-references to related terms, as well as a detailed index.
Modern Language Journal
...in view of its unique perspective and approach, its trenchant and effective explanation of grammatical points, its easily grasped and easily remembered rules, and its distinctively revealing diagrams and examples, it is hard to imagine a teaching situation to which Adorni and Primorac's English Grammar for Students of Italian, would not make an invaluable contribution.