Lisa Hill and her husband, Dr Rob Hill, established the Australind Veterinary Hospital in Australind, south-west Western Australia (near the city of Bunbury). In 2011 they conceived the idea of offering a Happiness Centre as part of the practice, and began utilising animals as a means of helping families and individuals develop positivity and well-being. Through the centre the Hill's also began writing and publishing a series of animal-based children's books. The first of the Smile-A-Lot books was released in 2013.