Lightning Rods - NYTimes.com It's a strangely moving experience to flip through "Woodcut" (Princeton Architectural Press, $30), a book of Bryan Nash Gill's relief prints of tree-trunk cross sections, which the artist harvests from felled trees, cedar telephone poles and discarded fence posts in his native Connecticut. One is struck by how Gill's method - cutting blocks with a chain saw, sanding them down, burning them and sealing them with shellac - amplifies the events in the life of a tree: lightning strikes, burgeoning burls, insect holes and, of course, the aging process, evidence of which radiates out in transfixing patterns. Verlyn Klinkenborg, who also writes for The New York Times, describes these cross sections in the book's preface as "the death mask of a plant, the sustained rigor mortis" of maple, spruce and locust. They remind us, he says, that every biological form "possesses a unique footprint."