This book delves into the significant collaboration between painter David Octavius Hill and engineer Robert Adamson, who, between 1843 and 1848, pioneered the calotype photography process. Their brief partnership yielded hundreds of portraits, dramatic staged photos, and architectural and landscape images, which are considered landmark contributions to photographic history. The Getty Museum houses over four hundred of their works, with forty-seven highlighted in this collection from the In Focus series. Additionally, the book offers insightful commentary on the photographs, a chronology of Hill and Adamson's partnership, and an edited transcript from a colloquium discussing their work.