A spiral bound book. The dimensions are based on an A4 size book.

The model consists of 5 meshes; the spiral binding, 2 covers, and 2 "blocks" of pages which can easily be scaled to thinner pages and duplicated if more pages are required.

Made in Blender 2.63, and rendered with Cycles for Blender.

The leather effect texture I used has not been included (as it does not belong to me, I only used it as an example of how a texture would look), but it is easy to add in different textures.