Orb-weaving spiders spin the wheel-shaped webs often seen on dewy mornings in meadows and hedges, or on the walls and the eaves of buildings. This manual provides descriptions, illustrations, and taxonomic keys for the identification of the 94 species of these spiders represented in Canada and neighbouring regions. This volume covers collecting methods, anatomy, and reproduction in detail. Also present is a detailed discussion on the nature of spider silk, and the construction of orb webs, along with clearly presented maps, keys, and illustrations.