Dr Michael Braby is Curator of Entomology at the Museum and Art Gallery Northern Territory and is a leading authority on the taxonomy, biology and natural history of Australian butterflies and day-flying moths. Dr Penny Olsen is a research scientist and natural history writer. This 106-page softcover/paperback book is in good condition. Please refer to the photos provided as these are of the book you will receive. Any questions? Please get in touch prior to purchase.