Myriapods are the only major zoological group for which a modern encyclopedic treatment has never been produced. In particular, this was the single major gap in the largest zoological treatise of the XIX century (Grassé’s Traité de Zoologie), whose publication has recently been stopped. The two volumes of “The Myriapoda” fill that gap with an updated treatment in the English language. Volume I opens with an introductory treatment of myriapod affinities and phylogeny. The following chapters are mostly devoted to the Chilopoda or centipedes, extensively treated from the point of view of external and internal morphology, physiology, reproduction, development, distribution, ecology, phylogeny and taxonomy. All currently recognized suprageneric and generic taxa are considered. Additional chapters deal with the two smaller myriapod classes, the Symphyla and the Pauropoda. All groups and features are extensively illustrated by line drawings and micrographs and living specimens of representative species of the main groups are presented in color photographs.