This book is a splendid collection of beautiful patterns which can be created by arranging regular shapes, usually rectangles so that they overlap in a symmetrical way. When the finished design is placed on a window, the light shines through one, two, three or more layers and the underlying structure is revealed. These patterns are specially attractive if made from tinted paper. Full descriptions and plans are included.A perfect activity when you wish to dress your classroom - e.g. pre-Christmas - mathematics and art in action!