Ventilator-associated pneumonia (VAP) continues to be one of the greatest challenges to critical care practitioners and one of the greatest threats to the survival of our patients. The choice of this topic for an issue of the PERSPECTIVES IN CRITICAL CARE INFECTIOUS DISEASES Series is therefore quite appropriate. Despite its importance, many areas of the management of ventilator-associated pneumonia remain controversial. We therefore are pleased to include contributions from experts and investigators offering different perspectives on some of these controversial areas.