This book is the first in English to explore the essential role that Henri Matisse's personal collection of objects played in his studio practice. The artist traveled with his collection even to temporary residences, and letters to family members often included requests for objects to be moved to where he was working, revealing them to be critical creative stimulants. Featured frequently in the modern master's bold paintings, drawings and cutouts, and influencing the development of his work in sculpture, Matisse's objects formed a secret history hiding in plain sight.