The iRef Guides: German Grammar, is the perfect "Quick Reference Guide" for quick and easy access to basic German Grammar information on-the-go. Each guide contains all of the basics of German Grammar with a brief explanation of each topic. You can use an iRef Guide to quickly study any topic in German Grammar, or use it for reference when writing or translating. Since it's mobile, it's always easy to access no matter where you are. Those laminated study guides are sooo 20th century! This guide also includes a bonus appendix featuring the principal parts of all of the most commonly used strong and mixed German verbs.