This month's issue of Cowboys and Indians has an online slideshow of horse photos by Tim Flach. These are lovely studies of variety of horses - from studies of light and shadow on the bodies of horses to stunning landscapes that include horses. Flach's website has another slideshow, with more fantastic photos. Some of them verge on the strange - horses modeling an assortment of flymasks and other protective gear, for example - and the final shot is perhaps the most unusual photo of a horse jumping I've ever seen.
All of the photos come from his recent coffee table book, Equus .