One of the most wide-ranging and ambitious creative minds of his generation, Icelandic-Danish artist Olafur Eliasson has produced a dizzying spectrum of work around the world. Best known for his large-scale public works in a wide range of settings, from museums to gardens, his constant inventiveness and publicly oriented projects across the globe have entranced huge numbers of people. Focusing on a single artwork situated across a large site in his native country, the project's title refers to the glaciers that formed the landscape around sites in Denmark, as can still be seen in the country's topography and geology. Five mirrors, ranging from a perfect circle to elongated ellipses, reflect the changing sky above and the contemplator's own gaze as if in the surfaces of glacial pools. This book offers a unique and highly detailed insight, captured over the course of four seasons, of a singular landscape. Working with geologists, landscape architects and other specialists, Eliasson has created a unique space seen by few. This publication documents and enhances the work itself through photographs, essays and collaborators who render the poetic power of the project in images and words. Exquisitely produced and packaged in a limited quantity, this very special volume is a gift to collectors, bibliophiles and all those seeking new perspectives on one of the world's leading artists.