This issue of Thoracic Surgery Clinics includes well-illustrated articles on surface anatomy, the pleura and pleural spaces (including the anatomy of the parietal and visceral pleura, the pleural reflections and recesses, and microscopic anatomy of the pleura), anatomy of the mediastinum (including mediastinal divisions and compartments, the thymus, the superior vena cava and brachiocephalic veins, the heart and pericardium, the thoracic aorta and its branches, the thoracic duct, and the nerves of the thorax) and the anatomy of the diaphragm and the esophagus (including vascular supply, lymphatic pathways, innvervation).