'Ethnic groups' and 'social classes' play an effective role in contemporary Iran. According to the book, undoubtedly, the emergence of new social classes, especially the traditional middle class and the intellectual class, and the emergence of political parties and groups and the conflicts and controversies between them, has accelerated the formation of the contemporary Iran. The main purpose of this book is to analyze the social foundations of Iran's politics, and Ervand Abrahamian does this by examining class and ethnic conflicts over the past hundred years and in the relationship between socio-economic developments and Iran's political development.

The author examines the history of Iran from the constitutional revolution in 1905 to the Islamic revolution of 1979 and has divided the book into 3 main parts: historical background, anti-social politics and contemporary Iran. The book has been translated into Persian language and reprinted 30 times in Iran by different publishers. The book ' Iran Between Two Revolutions' was written by Ervand Abrahamian in English language based on political sociology, to analyze the social and political events of the last century in Iran. This book has been translated into Persian and published many times in Iran. Iran Between Two Revolutions is a book by Ervand Abrahamian that was published in 1982 by Princeton University Press in New Jersey, United States.

تاریخ ایران مدرن by Ervand Abrahamian