Intentionally poor handwritten type, or child like drawings, spawned from the ironic, high-brow and self important counter culture referred to as 'the hipsters'. Predictably used for t-shirt art, album covers of indy bands, quirky movies and TV-shows
The handwritten type used for the movie "Where the wild things are", "Juno" etc.
The child-like or intentionally poor drawings used for bands like "Radiohead", "Animal Collective" etc.
Its all hipster doodle.