Authenticity and knowledge shine through every page of this wonderful book which takes the reader on an armchair journey around the coast of "God's Own Country," from St Dogmaels in the north to Amroth in the south. Roger MacCallum has an unequalled love of his native county and a knowledge base to match. So although each page of the book consists of "Then and Now" images of a certain beaches, rock faces or towns, each one also has a hugely informative and well-written text that adds, supplements and gives credibility to the visual images.

One of the things that really strikes you is the way some places - Swanlake Bay, for example, or Newgale Beach - have changed not one jot in the hundred years between the old picture and new.

Other locations such as the waterfront/dockyard frontage at Pembroke Dock have altered beyond all recognition. Quite apart from its literary quality - which is far greater than the author would ever admit to - this book is an invaluable piece of social history. It makes you wish you could be around in another hundred years to see what changes there might then be!