here, here, here, here, here and here. His seventh post appeared last weekend, tackling the subject of negative space as a compositional technique, with 19 photographs as illustration of his points (also to be found in his blog), ranging as usual from the most basic to the advanced very subtle uses. For this topic I have picked a shot by my Flickr friend aftab (You walk with me), which Rick commented on as follows: "An intriguing double instance of negative space here. The obvious one is the space in the top portion of the image, where emptiness provides a vertical balance to the action and truncated foreground. The second instance of negative space is the rock-strewn emptiness the man and boy are moving towards - the space for direction. This double space, with the subjects, create quite a serene image." Like the others in this series, highly recommended to expand your compositional horizon.