The excellent lighting site Strobist have released their Lighting 101 guide as a free PDF. Check it out!
What’s Strobist? “Teaching you how to use your small flashes, off camera, to get professional results. Your flash photography will never be the same again.”
These three Kodak publications are available as PDF downloads from archive.org. As you can see, they’re quite old, and the copyright has expired.
Kodak Monograph 1: The silver bromide grain of photographic emulsions, Adrian Peter Herman Trivelli (1921)
Kodak Monograph 2: The theory of development, Adolph H. Nietz (1922)
The Photographic Negative, William Henry Burbank (1888)
Written as a practical guide to the preparation of sensitive surfaces by the calotype, albumen, collodion, and gelatin processes, on glass and paper, with supplementary chapters on development, etc.
Photographic printing methods: a practical guide to the professional and amateur worker, William Henry Burbank (1891) (thanks, Glenn!)
Via APUG member Emulsion
Wilhelm Research has released their book, The Permanence and Care of Color Photographs: Traditional and Digital Color Prints, Color Negatives, Slides, and Motion Pictures, by Henry Wilhelm with contributing author Carol Brower—originally published in 1993—as a free, downloadable PDF.
You can get the individual chapters here at Wilhelm Research’s site, or from this direct link to the whole thing in one 79.6MB PDF file.
While I haven’t read it yet, chapter titles such as "Traditional and Digital Color Prints, Color Negatives, and Color Slides: Which Products Last Longest?", "Print Mounting Adhesives and Techniques, Tapes, Rubber Stamps, Pencils, Inks, and Spotting Methods for Color and B&W Prints", "Display and Illumination of Color and Black and-White Prints", and "Handling and Preservation of Color Slide Collections" have bumped it to the top of my reading list.
Thanks, Wilhelm Research!
Via Silverprint News