The quinolones are making a significant contribution to patient care and have added a new dimension to antibacterial therapy. During the last decade, they became important agents for treating hospital-acquired infections. This volume covers their mechanisms of action, resistance mechanisms and epidemiology, pharmacokinetics, safety and clinical applications. Their effectiveness for respiratory, urinary, sexually transmitted, skin, soft tissue, bone and joint infections, infections of the eyes, ears, nose and throat, and less common infections such as mycobacterial, Brucella and others are reviewed. Also described is their use in pediatric, oncology and immunocompromised patients. The quinolone story continues to be intriguing with exciting future implications. This monograph is an important comprehensive review and update for researchers and clinicians in pharmacology, clinical medicine, molecular and cell biology, epidemiology and the pharmaceutical industry.