This completely revised edition explores novel discoveries in bacterial genomic research, with a focus on technical and computational improvements as well as methods used for bacterial pangenome analysis, which relies on microbiome studies and metagenomic data. Beginning with up-to-date sequencing methods, the book continues with sections covering methods for deep phylogenetic analysis, the role of metagenomic data in understanding the genomics of the many yet uncultured bacteria, progress in genome-to-phenome inference, as well as computational genomic tools. Written for the highly successful Methods in Molecular Biology series, chapters include the type of practical detail necessary for reproducible results in the lab.