The National Centre for Australian Children’s Literature Inc has developed a Cultural Diversity Database. It offers a comprehensive collection of books which feature Australia’s culturally diverse population with the focus on understanding cultures, both similarities and differences. The scope of the Cultural Diversity Database:
Source: NCACL website.
Find more information on the scope, content, sources, exclusions, etc. at the link above.
Note, per the National Centre for Australian Children's Literature, 'The Aboriginal and or Torres Strait Islander Resource focuses on books by and about Aboriginal and Torres Strait Islander People, so these books are generally not included in the Cultural Diversity Database.'