His focus is on people who live and work here, who pay taxes and are subject to our laws, but who are not citizens and cannot vote: international students, New Zealanders, backpackers on working holiday visas, asylum seekers and refugees, the holders of 457 visas. This detailed, careful and topical book is illuminated by the personal stories of individuals and families caught up in a complex and bureaucratic system, and it leaves a lasting impression of an Australia that is becoming a two-tiered country.