Blinky Bill, the mischievous anthropomorphic koala, is well known around the world through the TV cartoon and movies, but the book version is a little darker. He runs away from home several times and constantly disobeys his mother, who of course beats him when she catches him - this would have been a normal punishment at the time it was first published in the 1930s. His father is brutally murdered by a man with a gun quite early in the story. The animals are often cruel to each other: for example, Blinky often talks about death rather flippantly and at one point, kills a nice frog, ants kill a goanna and snake, and a fox is tricked into eating a prickle-filled dead rabbit. You could argue that the harsher aspects of the story bring home the difficulties of life to children but it seemed a little strong to me.
For some reason, the pictures are often a long way from the text they illustrate, and this forces the reader to flip back and forth unnecessarily. This is the 1991 edition, so I hope that later editions have corrected this problem. In the story itself, there are some strange mistakes of biology, such as hedgehogs and porcupines living in the Australian bush, despite neither of them being native to the country. The worst error is that Wall constantly refers to the koalas as "bears" when they are marsupials. Perhaps the intended juvenile audience would not know the word or understand the difference, but they are challenged with tough vocabulary like "impudence", "perspiration" and "consciousness", so I think they could cope with the truth about the koala.
My parents read this to me when I was very young but I didn't remember much, only that I liked it. Despite its shortcomings, as an adult I once again enjoyed the adventures of Blinky Bill roaming around the countryside, being cheeky with wombats, kangaroos, kookaburras and other Australian wildlife, and his awkward encounters with human beings. It gives children a fine message of conservation and urges them to maintain a sense of fun and justice in life.