Foldable book for teaching infants has leaves folded together in pairs and carrying information corresponding between pairs

摘要

The foldable book for teaching infants has leaves (2) of the same formed pivoted together in pairs (3) to allow successive placing flat. The group of leaves form a Zig-Zag array to form a compact square surface. The leaves carry information on their front and rear surfaces to allow a correspondence between the exposed face of one leaf and one of the two faces at the time of unfolding.