StreetLib uses the most advanced technique for digital printing, which ensures high quality book production at the lowest cost possible while allowing single issue printings (which is impossible with a traditional offset method). Digital printing, among other things, allows your book to be printed anywhere in the world by simply providing your book file to the partnering printer.
Each book may consequently be printed by many different printers, with diverse printing machines. As the color settings and balance may differ from one machine to the other, it may occur that your book doesn't turn up with the exact same coloring from one print to the other. These variations would be minimal but they can occur.