A single module condensation of a nine-module course on wood compiled at the Forest Products Laboratory from a set of modules presented at the first Clark C. Heritage Workshop. University of Wisconsin, Madison, August 1979. This selection covers wood as a material, anatomy and ultrastructure, molecular and cell-wall structure. wood and moisture, physical properties of wood, mechanical behavior and properties of wood, chemical treatment for end-use, paper, and wood-based composites. It has a glossary, and a set of problems with solutions. For other modules in the series, see also 22-494, 22-701, 22-712, and 22-714. -- AATA