When slabs are bookmatched it means that instead of polishing the same face of each slab, they alternate for them so that they open up like a book. Thus the name.
Here's an example of Statuary marble in a bath. All of the walls are made out of slab. The seam is where the upside down 'V' is. See how it opens up and mirrors itself perfectly?
Bookmatching can be expensive, as there is a large amount of waste.Bookmatched slabs are usually used on feature walls, large islands and slab showers.
When we bookmatch the stone it's always fun to see what the design looks like. It reminds me of abstract (and sometimes not too abstract) art. We've seen the silhouette of a woman, animals, faces, hearts, just to name a few things.
They are typically stones with strong veins and lines that create very geometric patterns that make your floor, walls or countertops much more interesting.
Calacatta Gold (below) really shows it's beauty when bookmatched.
If you know you need your slabs to be bookmatched be sure to let your stone supplier know when you are selecting your slabs. The supplier needs to verify that they give you the correct slabs that bookmatch each other.