Optical illusions-visually perceived images that are deceptive & misleading.
According to an online dictionary it means the act of assuming of a certain position. Photography is a very creative and popular 'art', therefore there is a lot to know about it - you can check for several books about photography on the internet is you wish.
Space
pretty sure its space :)
Color and movement
He did not. Pop Art is a movement of the 1960s. Vincent died in 1890.
The principle is known as movement.
it can be helpful when you are trying to identify movement and the direction fo movementin a work of art.
cubism
Op art, short for optical art, refers to a visual art movement that emerged in the 1960s, characterized by the use of optical illusions and visual effects. Artists create dynamic, often abstract compositions that can appear to move or change when viewed from different angles, engaging the viewer's perception. The movement emphasizes the interaction between art and the viewer's eye, utilizing patterns, colors, and shapes to create a sense of depth and movement. Notable op artists include Bridget Riley and Victor Vasarely.
When the photographer intends to make art when he's taking the picture, or when he decides it is art after taking the picture.
Cubism
Cutting a picture into strips in art is often referred to as "strip art" or "strip collage." This technique involves slicing an image into narrow sections, which can then be rearranged or layered to create a new composition or visual effect. It can be used to explore themes of fragmentation and reassembly in visual storytelling.