IQ stands for Isaiah Quintabe, a young man who solves mysteries in the style of Sherlock Holmes, by using his intelligence and deductive powers. However the book is set in modern day Los Angeles in the crime and drug infested poor neighborhoods surrounding the golden city. Isaiah is a great new character in the detective genre and the book is full of humour and colourful characters. Isaiah has to cope with the loss of his brother and fend for himself. He also seeks redemption for a terrible tragedy for which he is partly responsible.