Some book windows opened onto gardens, at least two of which were secret ones. Into battles, into dormitories, into other worlds. Some led me into the past, or the future, anywhere but here and now.
Book windows didn't have jailers or monsters or snarling dogs or snapping crocodiles waiting for me outside. Or, if they did, I knew it was just part of the story, and I'd get past them eventually. I'd turn the page.
I didn't need pictures. I could have them, of course, some pictures are special. But they weren't absolutely necessary. I didn't need pictures or SFX or animation because the book windows always led to the most amazing place of all: my mind.