is more difficult for stone knappers than flint. The findings illustrate the returning humid periods in the palaeolithic Stone Age, which is also confirmed by our Optical Stimulated Luminescence. A complete presentation of desert stone artefacts in a local area has not earlier been presented in the literature and is of interest for archaeologists. The book begins with a summary of the origin and history of stone artefacts. The book has 390 double photos, 35 photos, 13 maps and 9 tables.