This issue of Interventional Cardiology Clinics, edited by Matthew J. Price, is devoted to Intravascular Imaging. Dr. Price assembled a group of expert contributors to review the following topics: IVUS for the assessment of coronary lesion severity and optimization of PCI; IVUS for the diagnosis and treatment of left main coronary artery disease; Fundamentals of OCT: image acquisition and interpretation; Technique and Best Practices for Intracoronary OCT; Assessment and quantitation of stent results by intracoronary OCT; PCI planning and optimization with intracoronary OCT; Advances in Automated Assessment of Intracoronary OCT and Their Clinical Application; Diagnosis and evaluation of stent thrombosis using OCT; Acute and long-term evaluation of bioresorbable scaffolds by OCT; Role of OCT in the diagnosis, evaluation, and management of spontaneous coronary artery dissection; and Neointimal Coverage after Drug-Eluting Stent Implantation: Insights from Optical Coherence Tomography.