The Arena OSD A2 (KID A2) is aimed at students aged 12 and above who want to prepare as well as possible for the highly popular German certification exam "OSD-KID A2". In the book, one can find 10 complete tests faithful to the exam format, as well as additional grammar and vocabulary exercises. Through the first test, a detailed presentation of the exam format is provided part by part, along with an approach to solving the exercises one by one. The Arena OSD A2 (KID A2) can be used either in a special exam preparation class or in a regular German learning class at level A2, alongside any teaching series (after the middle of the material). The book covers all thematic fields of the "OSD-KID A2" exam in all parts of the tests and offers, through many additional exercises, a systematic review of the necessary vocabulary. The Arena OSD A2 (KID A2) also repeats, through additional exercises, the most important chapters of the required grammar for the level and thus serves to identify and address problems in the students' knowledge. The Arena OSD A2 (KID A2) is very carefully designed to achieve the desired difficulty level of A2, has been extensively tested, and guides candidates from start to finish, responding to the difficulty of the exam, so that unpleasant surprises are avoided.