Zurich's Sustainability Week is a collaborative project by students from five universities in Zurich. Throughout the week, they coordinate a series of events focused on sustainability. We designed three distinct posters, each with a specific focus: Reduce, Rethink, and Recycle. The approach was to incorporate different illustrations that seamlessly complemented these three themes, intertwining with the typography. Maintaining a consistent typographic structure across all three posters, we allowed the illustrations to freely and playfully traverse the design, each underscored with its unique color.