Pasteurellaceae comprise a large and diverse family of Gram-negative bacteria with members ranging from important pathogens such as Haemophilus influenzae to commensals of the animal and human mucosa. Information on the biology of these organisms has mushroomed in recent years, driven by the development of novel genetic and molecular methodologies. Since 1995, the family has been expanded from three genera to the current thirteen through the use of new genetic-based classification and identification technologies. Many members of the Pasteurellaceae family make excellent natural models for the study of bacterial pathogenesis and host-pathogen-interactions thus giving valuable insights into related human diseases. Research in this area is at a very exciting stage. In this timely book, leading international Pasteurellaceae scientists critically review the most important current research providing an up-to-date review of the molecular biology, genomics and virulence of these fascinating organisms. Topics covered include taxonomy and biodiversity, phylogeny, comparative genomics, competence, DNA uptake and transformation, proteomics and protein secretion, RTX toxins, lipopolysaccharides, biofilms, quorum sensing, antimicrobial resistance, diagnosis, and OMP and iron uptake. Each chapter is independent and can be read in isolation and as a whole the book provides an important resource summarising our current knowledge of Pasteurellaceae genomics and molecular biology. Essential reading for everyone working on Pasteurellaceae and related organisms.