Although steel is prevalent in many of Kjærholm's design, he was inspired by nature throughout his life. Natural materials such as wicker and leather were chosen for their ability to age over time. Featured in Fritz Hansen's headquarters in Copenhagen, a section dedicated to the designer includes the PK11 armchair paired with the PK55 table while the PK20 lounge chair and PK31 sofa surround the coffee table.  Photo 5 of 11 in 10 Things You Didn't Know About Poul Kjærholm