Geometric lines, shapes, and patterns can be found in everything.  While often thought about in architectural photography, the subject matter can be anything from vast cityscapes to patterns in nature.

Our minds are geared to recognise shapes, wired that way at the deepest level.  When we can recognise shapes and see them balanced on the page, we feel good about the image, even if this happens at such a deep subconscious level that we aren’t aware of the analysis going on internally. When composing an image, the addition of geometric patterns or basic shapes such as lines, circles, squares, and triangles can add structure and organisation to that photograph. It helps us as a photographer translate an idea or feeling to the viewer.

Sometimes they can be quite subtitle, often they are not outlined but implied. Even if you think they are not present then you can rest assured that they are, triangles are in almost everything we see, in one way or another. Our task as photographers is to distinguish them and use them to our advantage.

Henri Cartier-Bresson said the decisive moment comes when 'the picture in one glance says everything and says it in terms of design, rhythm, pattern – every element in a strong relationship with all the others… Photography is a matter of visual geometry.

 Re-look at this image and see how many triangles can be found.