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". The book contains 10 complete tests in the format of the exam, as well as additional grammar and vocabulary exercises. The first test provides a detailed presentation of the exam format, as well as an approach to solving the exercises one by one. The Arena OSD A2 (KID A2) can be used either in a special exam preparation section or in a regular German learning section at A2 level, alongside any teaching series (after the middle of the curriculum). The book covers all the thematic areas of the "OSD-KID A2" exam in all parts of the tests and, through many additional exercises, offers a systematic review of the necessary vocabulary. The Arena OSD A2 (KID A2) also reviews the most important chapters of the required grammar through additional exercises, helping to identify and address students' knowledge problems. The Arena OSD A2 (KID A2) is carefully designed to achieve the desired level of difficulty of A2, has been extensively tested, and guides candidates from start to finish, responding to the difficulty of the exam, so as to avoid unpleasant surprises.