This book explains in great detail the creation of the Lesvos Petrified Forest, the process of fossilisation of the trees of the dense subtropical forest that flourished in the north Aegean area 20 million years ago. It includes information and impressive photographs of volcanic monuments on Lesvos, but also in the whole Aegean area, owing their existence to the past volcanic activity. It closes with details on the recent volcanic activity and the active volcanoes in the Aegean area.

The texts in this 64-pages book are given in English, German and Greek.