Covered in snow, glowing in delicate green, blooming, or displaying autumn colors: trees are an impressive sight in nature at any time of the year. Their role in providing enough oxygen for our planet makes them incredibly valuable to us humans. The twelve motifs of this calendar showcase trees in all their splendor and serve as true sources of strength in everyday life. All Art12 calendars come with a yearly planner. Like all Ackermann calendars, they are produced exclusively in Germany and printed on climate-neutral paper in cooperation with NatureOffice, sourced from exemplary managed, FSC-certified forests and other controlled sources.