Are [preambles] truly non-operative?” With this question, Prof. Frosini begins his book on constitutional preambles. It is not surprising that the preamble of the Iranian constitution, as the world’s longest preamble, holds particular fascination for Frosini. With fourteen different sections, each with a separate title, the preamble covers most controversial issues of the country, e.g. the reasons for the Islamic revolution, the foundations of an Islamic government, the role of women in society, the freedom and dignity of mankind, the rejection of bureaucracy born out of an autocratic governments. However, the relevance and legal value of the Iranian preamble is a matter of dispute. This presentation provides a historical analysis of the function and legal status of the Iranian preamble considering its interpretive dynamics for transforming the country’s political arena.