The book "Dat Appel-Bookje" by Matthias Bergmann offers a comprehensive introduction to the world of East Frisian apple varieties. It is aimed at nature science enthusiasts and provides detailed initial descriptions of these regional fruit varieties. With a clear focus on the diversity and unique characteristics of apples from East Friesland, the work is both informative and attractively designed. The non-fiction book spans 128 pages and is written in German, making it accessible to a wide audience. With dimensions of 17.4 cm in width and 24 cm in height, it is handy and easy to store. Weighing 582 grams, it is also comfortable to hold. The authorship of Matthias Bergmann, supported by the expertise of Heinz-Herbert Buss, ensures a well-founded and precise presentation of the topic. This specialized book is a valuable resource for anyone interested in botany and the specific characteristics of apple varieties.