How many are there in a book? http://ileniafc.altervista.org/phpBB2/profile.php?mode=viewprofile&u=47055&sid=b8f48c0b241c715e4de4c76ad84d194c woodroom The call is the culmination of a dramatic shift in tone between Iran and the United States, which cut diplomatic relations with Iran a year after the 1979 revolution that toppled U.S. ally Shah Mohammad Reza Pahlavi and led to the U.S. Embassy hostage crisis in Tehran.