"Making Your Camera Pay" by Frederick C. Davis is a practical guide on how to monetize photography, written in the early 20th century. The book, likely composed in the 1920s, focuses on providing insights for amateur photographers on how to successfully sell their work to various publications. It details the types of photographs that are in demand, how to market them effectively, and covers the necessary tools and techniques to improve one's photography skills. In this comprehensive manual, Davis emphasizes the importance of understanding market needs and developing a "nose for news" to recognize captivating photographic opportunities. The book outlines various subjects suitable for photography, such as local events, human interest, and commercial demands. Davis also provides essential advice on camera equipment, the preparation and presentation of photographs for publication, and practical tips for shipping prints. Throughout, he offers encouragement, stressing that while success in photography requires effort and persistence, the potential for profit and fulfillment is substantial for those who are willing to work hard and learn. (This is an automatically generated summary.)