Here Are Some Highlights From The World's Largest Pizza Box Collection

Scott Wiener/Viva La Pizza

A Valentine's Day themed box from Roma Foods celebrates the introduction of four-color printing.

When The Guinness Book of World Records certified Scott Wiener's pizza box collection last week as the largest in the world, he had 595.

As of this weekend, Wiener has reached more than 600 pizza boxes.

The new boxes came from Chicago, where Wiener is currently publicizing this month's release of his first book,"Viva La Pizza." It features 112 of the boxes from his collection and an explanation of how each one fits into the history of the pizza box.

He even tracked down and interviewed some of the artists behind the colorful boxes. Turns out, pizza boxes from around the world can look incredibly different: Italians work more in pastels, while Americans work more in computer graphic design. There has also been a shift from single-ply cardboard to corrugated.