London: Longman, Brown, Green and Longmans, 1844. — 90 p.
The Pencil of Nature, published in six installments between 1844 and 1846, was the "first photographically illustrated book to be commercially published" or "the first commercially published book illustrated with photographs". It was wholly executed by the new art of Photogenic Drawing, without any aid whatever from the artist's pencil and regarded as an important and influential work in the history of photography. Written by William Henry Fox Talbot and published by Longman, Brown, Green & Longmans in London, the book detailed Talbot's development of the calotype process and included 24 calotype prints, each one pasted in by hand, illustrating some of the possible applications of the new technology.