Abstract: A waterproof book can be read during bathing without trouble, is capable of maintaining its original shape, has leaves capable of maintaining the original shape and can be held by one hand for reading. The waterproof book includes: a necessary number of printed waterproof sheets forming leaves and each provided with a plurality of binding perforations on one edge thereof; and a binding member engaged in the binding perforations to bind the superposed waterproof sheets. The binding member has at least two binding loops capable of being closed after being loosely engaged in the two binding perforations of the superposed waterproof sheets, and a connecting part connecting the binding loops.