author
1885–1974
A clear, practical guidewriter from photography’s early modern years, he specialized in making technical processes understandable for everyday readers. His surviving books show a strong talent for turning darkroom science into usable advice.

by Lloyd I. Snodgrass
Lloyd I. Snodgrass was an American photography writer born in 1885 and deceased in 1974. The published record that survives online identifies him most clearly through his instructional books on photographic technique, especially The Science and Practice of Photographic Printing (1923) and Photography Self Taught (1926).
His work focused on the hands-on side of picture-making: cameras, lenses, exposure, developing, printing, and related darkroom practice. What stands out is how directly he wrote for learners, breaking technical subjects into practical lessons rather than treating photography as a mystery.
Very little biographical detail beyond his dates is easy to confirm from reliable public sources, so the books remain the best window into his career. Taken together, they suggest a writer-teacher who helped early 20th-century readers understand photography as both a craft and a science.