This is an essential book if you want to better understand how camera design influences the pictures that it makes, and of course, the Rollieflex twin-lens, roll film design in particular.
There was a period when the Rolliefflex was an important professional tool and, of course it is still marketed (mostly as an expensive personal tool for the wealthy), along with a variety of single lens reflex designs, particularly the Hassleblad, which pose similar challenges to their users.
Further, it you want to consider magazine illustration carefully, or historically, or more particularlys the work of Fritz Henle, a quintessential illustrator, there is valuable material here.