This book is a record of the practice of Fuminori Nosaku and Mio Tsuneyama, who engage in critical architectural practice on the theme of contemporary cities and ecosystems. 

The cover is made of paper with an earthy texture. The text is printed by rotary printing on rough recycled paper with low printability, the same as newspaper printing, evoking the concepts of regeneration and ecology central to both their practice and the book itself. In addition, the recycled papers from various materials are used for the 15 essay parts which separate the chapters. By adjusting the fold width of these sections, chapter heads catch the fingers.