Review: Desmids in Drenthe. In August 2024 Marien van Westen published his atlas of the desmids of Drenthe. Drenthe is a province in the eastern part of the Netherlands with a relatively large amount of small standing waters, many situated in nature conservation areas. This book Sieralgen in Drenthe by Marien van Westen is a very valuable addition to our desmid literature and indispensable in the bookcase of a desmid researcher. Naturalists may be stimulated by this book to discover the biodiversity and beauty of this algal group. Waterboard ecologists may discover the use of desmids to assess the ecological quality of their inland waters.