This book is a study of the element of lightness, a theme which is reflected throughout the work of Finnish designer Ilkka Suppanen. Beyond presenting Suppanen’s varied design work throughout his career, the publication dives deep into the theme of lightness itself, offering a comprehensive and profound perspective. The concept of lightness is explored in numerous contexts, showcasing its influence on material and architectural choices, philosophical considerations and aesthetic behaviors. The book is divided into eight distinct topics, each one containing a text by a contributor with a unique knowledge, thus offering a range of fascinating perspectives. At the same time, Lightness serves as a visual essay by Suppanen, showcasing the poetry of lightness as it is mani- fested in different cultures, contexts and scales globally.