The Circular Calendar is a single-page wall calendar by the German designer Sören Lachnit. In the middle, the bright egg yolk of a sun shows the average number of hours of daylight at 50°, 40°, and 30° north of the equator. The rings around the center depict the weekdays, calendar weeks, months, and solar and lunar phases. There is also a little space for note-taking between the lines and in the page’s white space, should one want to mark it up. The design is printed on heavy, silk-finish paper in size A0. Available online for €24, the Circular Calendar ships worldwide.