Abstract photography, sometimes called non-objective, experimental, conceptual or concrete photography, is a means of depicting a visual image that does not have an immediate association with the object world and that has been created through the use of photographic equipment, processes or materials.
Of all artistic mediums, photography is perhaps the most dependent on technological advances. Because of this, photography's methods and uses have greatly evolved since its invention. Abstract photography is reflective of this evolution and progress.
Conceptual photography was also an important genre within contemporary photography, along with the use of photographic images for social and political critique and awareness.