Readers, professional or casual, are alert to passages in a book that illuminate what was previously shadowy and formless.
The child who gets lost in a book can emerge from the experience a changeling.
I think the influence of books is neither direct and more predictable. Books themselves are too unruly, and so are readers.
My own mother, who's always dazzled by my faculty and answering questions in the literature a category on Jeopardy whenever we watch it together, keeps urging me to try to get on the show to make all those years spent reading finally pay off. Leave me alone I'm reading
Luckily, my job demands constant reading, otherwise I'd have to figure out some other excuse.