As an outpost of empire, Scotland played a significant, if unusual, role in the Roman world. The south and east were occupied intermittently from AD 79 to the early third century, while the north and west remained outside Roman control, though certainly not beyond its influence. The conquest was therefore incomplete in Scotland, and military occupation was not followed up by a period of peaceful development; no towns were built, and surviving remains are of camps and forts for the most part. Despite this, the Romans left an important imprint on Scotland. Much documentary evidence sheds light on the native population and archaeological research has led to detailed understanding of the range and distribution of the forts and other sites, and aerial photography has made possible a number of discoveries, filled gaps in our knowledge and opened up new avenues of enquiry. In this revised edition of his highly praised book, originally published as Scotland's Roman Remains, Lawrence Keppi