Almost every Roman site in Britain seems to have had its baths. They needed to be strongly built and to a large extent were constructed below contemporary ground level. As a result the remains of Roman baths have resisted demolition and damage by the plough. We can easily imagine how, and in what environment, the Romans and their slaves bathed. Bathing establishments are easily recognised, as are th materials used in their construction. The purpose of this book is to explain how Roman baths came to be built, how they were constructed, how they were used, and how they worked.