The two Anchell books I've found most useful are The Film Developing.. and The Variable Contrast Printing Manual, of course different strokes etc.,but both these volumes seem very well researched and backed by extensive practical applications. The latter book is also great for all those cold light filter questions that I see all the time. I do believe there are better places than Amazon to buy them, try bookfinder.com or Powells Books in Washington State. Cheers(posted 8630 days ago)