In many regions of the world, stone was historically the predominant material used for building and artistic purpose. Accordingly, the conservation and maintenance of architectural and decorative stone is a core activity in such regions. Factors such as climate change, Pollution, use demands, lack of maintenance, and inappropriate past treatments present challenges for the conservation of stone building, Structures and objects. In addition to these factors, the decline in traditional building techniques, craft practices and repair methods is also threatening our ability to sustain stone structures and object into the future. These conservation issues require a multidisciplinary approach that involves professionals, craftspeople, policy makers and owners.