You? ll find a selection of some of the most startling and unusual cloud formations, from uniform streaks of ? cloud streets? to the odd bulbous ? lenticularis? that are commonly mistaken for UFOs. Each amazing photograph will be accompanied by Hamblyn? s entertaining and informative explanation of how the cloud was formed and the conditions in which a similar one might occur. The images chosen use satellite photography as well as ground-based pictures and the collection demonstrates the most unexpected and seemingly impossible patterns that can be created by the natural cycles of weather.