在四章中，Neil Oliver主要根据考古发现和遗址并加以说明，解释了就目前所知，被称为古不列颠的铁器时代凯尔特人部落是如何演化并进入欧洲文明的。他们内部的部落阶段是好战和分化的。海外接触，特别是金属贸易，带来了财富和进步。最终，它吸引了优越的罗马帝国，罗马帝国将征服并平定英国，使之成为一个省，就像不久前的高卢一样，但凯撒的入侵还不是最终的吞并，那是留给皇帝克劳迪乌斯的；甚至在之后，一些凯尔特人的特征甚至叛乱仍然存在。

In four chapters, largely based on and illustrated with archaeological finds and sites, Neil Oliver explains how, as far as is known, the Iron Age Celtic tribes known as the Ancient Britains evolved and entered European civilization. Their internecine tribal phase was warlike and partitioned. Overseas contacts, especially metal trade, brought wealth and progress. Ultimately, it attracted the superior Roman empire, which would conquer and pacify Britain into a province, like Gaul shortly before, but Caesar's invasion wasn't the definitive annexation yet, that was left to emperor Claudius; even afterward some Celtic traits and even rebellions remained.