This collection contains images of rock-art of the Wadi al-Ajal, in the Fezzan region of south-west Libya. Several hundred engravings have so far been identified here. This rich concentration of rock-art spans the phase from at least 7 000 years ago until the present - a critical period of time which encompasses major transitions in human economy, culture and ideology from hunting and gathering to raising livestock, then to agriculture and more recently to industrialization. Rock-art provides fascinating evidence of how human groups were living during this period, what their relationships with their environment were and what they considered of importance and value. Because rock-art is deliberately placed at specific locations in the landscape, a powerful relationship can often exist between rock-art sites and natural landscape features.