When author Paul Vincent moved into his new home in Bristol, Rhode Island, he was struck by how generously its interior gathered sunlight and decided to keep a record of the annual solar itinerary across its walls, floors and furniture. The result is The Analemma Waltz, a celebration of the sun's slow-motion dance through his house, facilitated, in part, by its surfeit of windows, but much more so by the analemma-the narrow figure-eight...