Black and White example 1 - Before colour photography became popular in the mid 20th century, black and white photography was the norm. Cameras were not able to produce coloured images. To recreate this effect now, images can be altered in Photoshop, by changing the images colouring and exposure.
Tenebris // Though this picture is simple. I have done black and white photography for many years and my favorite element of design is contrast. The contrast in this photo takes it from simple to interesting.