Having worked on projects around the world, strengthening and restoring historically significant structures from Windsor Castle to the parliament buildings in Canada, Peter James brings insight to the structural engineering of ancient Egypt. After fourteen years working on the historic buildings and temples of Egypt, and most recently the world's oldest pyramid, he now presents some of the more common theories surrounding the `collapsing' pyramid - along with new and innovative projections on the construction of the pyramids and the restoration of some of Cairo's most monumental structures from the brink of ruin. The decoding of historic construction from a builder's perspective is examined and explained - often contrary to many existing theories - and the book provides a new outlook on long-held assumptions, to embrace modern theories in a bid to preserve the past.