Starting with such developments as walls, floors, doors and windows (and if one thinks they’ve always been there, look at the Parthenon), moving through such topics as symmetry, the lift, beaux-arts and form follows function and concluding with the likes of sustainability, deconstruction and community architecture, the book presents 100 ideas, each of which has contributed to the field we know as architecture. Author Richard Weston is clearly very well read, his analysis is comprehensive and backed up with references and, at the same time, succinct. However, as with any book presenting 50 of these or 100 of that, the very format of the book poses the question, how many significant ideas were rejected or questionable ideas added to achieve the nice round number of 100.