[F]or many decades after the invention of photography, blurred objects represented inferior work, for we do not actually see fast activity as a blur, and people therefore did not understand the blurs in photographs. But now we have learned from photographs to interpret blurs as objects in motion, and the conventionality of conventions is confirmed by the fact that even illustrators now sometimes imply speed by drawing a blur.
– Perry Nodelman, Words About Pictures
Hilda Bewildered is full of illustrations which borrow from photographic conventions; indeed, that’s what the story is all about — surveillance. For more information, see the close-reading notes, available as a link from within the app.