Bacterial Carbonic Anhydrases, Volume 55 in The Enzymes series, highlights new advances in the field, with this new volume presenting interesting chapters on a variety of timely topics, including Overview on bacterial CA genetic families, Bacterial α-CAs, Bacterial β-CAs, Bacterial γ-CAs, Bacterial ι-CAs, Sulfonamide bacterial CA inhibitors, Non-sulfonamide bacterial CA inhibitors, Helicobacter pylori CA inhibition, Neisseria gonorrhea CA inhibition, Vancomycin resistant enterococci CA inhibition, Pseudomonas aeruginosa CA inhibition, Mycobacterium tuberculosis CA inhibition, and Challenges for developing bacterial CA inhibitors as novel antibiotics.