For a couple of years, we used our Martha family for all of our communications and invoices. Even though it worked great for that purpose the whole time, when we took the decision to refresh the design of our website and our brand, we decided we needed a dedicated typeface for the purpose. Klaus was created to answer our own specific needs of a typeface that would work beautifully on the web as much as in our printed paperwork. Its clean contours and opened shapes make it perfect for this purpose and the fact that it is a monospaced design helps us line all those numbers in the quotes and invoices nicely. We also decided to include all of the icons used in the user interface and the design of the website to make everything appear nicer. It is used in two weights, a very light regular and a bold bold, just so we get that sweet contrast we all love so much.