This book is written very poorly in terms of blindness. A blind man would never be able to move as freely as Zac. It is totally unrealistic. Also, the book is lengthy and between Zac and Olivia happens far too little. it is also impossible not to recognize a guide dog. who have a harness and will not be taken on a leash. It also falls on people vouchers if someone is blind. I have never read such a bad book. Shame about the money.