Rolls of paper at a paper mill. The paper has been manufactured in a series of stages that turn wood into paper pulp and then paper. The paper here has just gone through one of the final stages, using a high temperature to apply a coating that improves the quality of the paper for printing uses. The roll at right is nearly ready, and the one at left is ready for packing and transport. Photographed at the Ortviken paper mill, Sundsvall, Sweden.