We would like to take this opportunity to mark the 30th year of continuous publication of Seminars in Thrombosis and Hemostasis. Over the past 30 years, the field of hematology has undergone tremendous change. Conditions that were once fatal are now treatable with the advent of new drugs and procedures. Throughout its illustrious history, Seminars has sought to enable the medical community by providing specialists with a review forum to publish and discuss important trends in the field. Over the past three decades, the journal has not only succeeded but also excelled in this endeavor, and we count many of the world's leading specialists as contributors to the journal. The success of the journal would not have been possible without the continued and sustained efforts of Editor in Chief Eberhard Mammen, M.D. As the journal's sole Editor in Chief he has presided over the journal from its humble beginnings to its present position as the premier review journal in the specialty.