Riley Cran is an American Type Designer, who works for Lost-Type, a really well known Type Foundry - http://losttype.com
I had already spoken to him for my dissertation, and would have for him to input in the project. Here is our conversation:
I looked into the book he recommended, which has helped tremendously with finishing the alphabet (see my work on the letter Z)
This is the book, which I managed to find a PDF of entirely online: