The document discusses several theories related to reading development and how reading is changing in the digital age. Schema theory and socio-cultural theory suggest that individual experiences and background knowledge influence how people read. Identity theory connects how one sees themselves as a reader to how they engage with texts. Popular opinion argues that books and deep reading are declining as digital screens become more common. Neuroscience research also indicates brains are adapting to digital reading styles like skimming. Web designers recognize people read very little online and tend to browse quickly.