Badlands: A Tourist on the Axis of Evil, Tony Wheeler, Lonely Planet, 2010, ISBN 978-1-74220-104-7, ... For some reason many prices in Iran are not in rials, but in a totally imaginary unit known as a toman or 10 rials. So prices can always be out by 10 and my would-be-driver's 'usual fare' of 10000 is really 100000 rial ...