I have not looked at these books. But I did learn from a master printer named George Phillips. The first thing is to set certain standards. Like Temp, how your paper is coated, humidity basically the variables.
The second is to use the Gray scale to set your standards up and do NOT use any image until this is set. Remember the gray scale will set all of the outer perimeters of the way you decide to print with your variables. This is very crutial. Once these are set you will be able to print anything. Because the grayscale is a wider space than what you will certainly shoot.
I invented this for the Smithsonian using digital negs in 1997. If anyone needs to chat about this please feel free. I have been asked to write a book on all of the processes like (Evercolor, carbon prints, Inkjet ect) that I have worked on but I'm not a writer but I am interested in passing on any help I can give. Please remember California Time. 9095841720 Lab and 9098789214 gallery Thanks Tim
P.S. When you use the grayscale, use the largest grayscale you can get. This will allow you to modify your image later and pick the exact values you will want in the print.