We offer here a variety of 19th-, 20th-, and 21st-century texts -- dozens of essays, and several complete books -- addressing aspects of the theory of the medium of photography, by a spectrum of authors. We've arranged them in loose thematic clusters, according to the author's last name.

• A. D. Coleman
• Peter Henry Emerson
• Lew Thomas

We apologize for any errors, and appreciate corrections of any inaccuracies in what we've posted here, especially if they come accompanied by exact sources (publication, author, volume, issue, page numbers, etc.) for your information. Just email us at corrections@photocriticism.com.

We welcome your suggestions for additions to this category of material in our Photography Criticism CyberArchive. In doing so, you'll expedite our pursuit of that material by citing as completely as possible the bibliographic reference from which you've derived your interest in it, and (if possible) contact information for the author. You can send recommendations to us at suggestionbox@photocriticism.com.