Clive Edwards and his distinguished panel of researchers bring together a collection of detailed molecular methods for the environmental monitoring of bacterial populations. These state-of-the-art methods include techniques for the recovery of cells, for the analysis of whole cells, and for the molecular study of target species and heterogeneous populations. Many of the methods enable bacteria to be monitored in their natural environments without culturing and specifically address the difficult problem that only a small proportion of bacteria in any ecosystem can be cultured by traditional microbiological methods. Environmental Monitoring of Bacteria takes full advantage of the exciting research in recent years that has challenged some long-held principles of traditional microbiology and gives timely and practical access to techniques that allow the study of bacterial ecology as communities, single cells, or at the molecular level.