The theme of the book is acceptance of our differences. The main character, Callan the Chameleon, has tendencies that parallel with Asperger's Syndrome.The story deals with this in a subtle way and celebrates our unique personality traits and individual talents.The story revolves around Callan and his bush animal friends, Emily the Echidna, Kyle the Koala, Kimberley the Kookaburra, Wesley the Wombat, Felicity the Frilled Necked Lizard and other uniquely Australian animals.Callan the Chameleon features a reference section on Asperger's Syndrome by Professor Tony Attwood."