1. Gorilla;Browne,2002
2. When We Were Young: Two Centuries of Children's Picture Book Illustrations;Feaver,1977
3. Gill, Talia, 2002. Visual and Verbal Playmates: An Exploration of Visual and Verbal Modalities in Children's Picture Books. Unpublished B.A. (Honours), University of Sydney, Australia.
4. Language as Social Semiotic: The Social Interpretation of Language and Meaning;Halliday,1978
5. An Introduction to Functional Grammar;Halliday,2004