It's a highly effective technique we call 'windows into the past', combining photography and creative graphic design skills.
It's a technique Neil used closer to home to great effect, with the help of the Ironbridge Gorge Museum, in and around Ironbridge, to show how life has changed, or not changed, in the last 150 years. The resulting series of images have been used by the museum since as part of public displays and have been enjoyed by thousands of people.