Serrote comes from Lisbon, Portugal, was founded in 2004. It specializes in using letterpress printing technology to produce various types of paper products such as notebooks, postcards, posters, and even illustrated books. Letterpress printing has the characteristics of thick ink and bright colour; however, it can only print in a small amount at one time. Serrote uses this feature to add a serial number to each completed notebook, to make it always precious and unique, just like a work of art.