author
1885–1974
A practical early photography writer, he helped beginners understand cameras, exposure, developing, and printing in clear, hands-on terms. His books reflect a time when photography was both a technical craft and an exciting new hobby for everyday readers.

by Lloyd I. Snodgrass
Born in 1885 and dying in 1974, Lloyd I. Snodgrass is known today for straightforward instructional books about photography. His best-known work, Photography Self Taught, was written to help amateurs learn the basics of making photographs without needing formal training.
He also wrote The Science and Practice of Photographic Printing, a more detailed guide to the technical side of darkroom work. Together, these books show a strong interest in explaining photographic processes clearly and practically, from camera use to printing.
Reliable biographical detail about his personal life appears to be limited in the sources I could confirm, so he is best understood through his work: a patient teacher on the printed page, writing for readers who wanted to master photography for themselves.