The 'Honeycomb City Landscape Collection' likely refers to a set of illustrated books or a publication that showcases various landscape designs and planning concepts for 'honeycomb cities'. These cities are designed with a network of interconnected green spaces, permeable surfaces, and sustainable urban infrastructure, inspired by the structure of a honeycomb. The collection might include examples of sustainable urban design, green roofs, rainwater harvesting, and urban drainage systems. It serves as a reference for architects, urban planners, and environmental designers interested in creating eco-friendly and resilient urban environments.