The first edition (1973) was acclaimed and it firmly established the Shropshire Coalfield as the cradle of the Industrial Revolution. After several reprints a new edition appeared in 1981, but since then there has been much further research, and re-examination of interpretations, prompting a completely re-written book with an entirely new structure, and with many more illustrations, all integrated with the relevant text. This is the book that made Ironbridge a place of international pilgrimage, and, in its new edition, provides a 21st-century explanation why!