Khuong B. Nguyen, Ph.D. (1988) in Nematology, University of Florida, is a senior biological scientist at the University of Florida.He has published extensively in Taxonomy of insect parasitic nematodes. He has described 15 species and one genus of nematodes.David J. Hunt, Ph.D. (1975) in Nematology, University of Reading, is a senior nematologist/biosystematist at CABI Europe-UK, a post he has held for over 30 years. He is Editor-in-Chief of Nematology and has published extensively on the taxonomy of plant-parasitic and arthropod-parasitic nematodes, describing over 100 new species and 17 new genera.

"This book is a must-have for al those who want to describe new species of either Steinernema or Heterorhabditis. [...] The book provides monumental information to help identify these entomopathogenic nematodes and use them as biocontrol agents" - M. Rafiq Siddiqi, in: International Journal of Nematology, vol 17 no. 2 (December 2007)"The publication of this book is an event that will send very positive stimuli across this specific field of zoology - EPN studies... This book will influence studies of entomopathogenic nematodes for years ahead. [Above all] it will make life easier for anyone intending to describe new EPN species or to isolate associated bacteria, and to use molecular techniques to study their phylogenetic links." - Sergei Spiridinov, in: Russian Journal of Nematology, vol 16 (2008) pp. 67