Simplifying Composition - Aspect Ratios

In this book, Bruce Percy covers all the major aspect ratios such as 3:2 (35mm), 4:5, 6:7, 1:1 and 6:17.

But most importantly, he illustrates through his own photography, how the aspect ratio of your camera dictates how you lay your compositions out. He also illustrates how the 35mm aspect ratio of 3:2 is a hard format to compose in and makes you consider that perhaps, if you want to improve your photography, your camera may be acting as a stumbling block to your own photographic development.