A learner's grammar for German learners aged 15 and older with Greek as their mother tongue – it sounds simple, but behind "German Grammar & Syntax" by Spiros Koukidis lies much more. "German Grammar & Syntax" can be used practically from the first to the last German lesson at all levels and is also suitable for self-study. The book is oriented towards both standard German and everyday language (German colloquial language). As a grammar book for learners with Greek as their source language, it takes into account the similarities and differences between the two languages. Each statement and rule is illustrated with tables and appropriate examples. Each section refers to the corresponding exercises in the "Large German Exercise Book." The "blue grammar" has also not changed in its second revised edition.