This book is a collection of stories from Shahnameh: originally written as an epic poem in three volumes by Iranian poet Ferdowsi in the 10th century. This book (the first volume) contains the mythical part of Shahnameh. This book is in Persian (Farsi).

Once Upon a Time is a selection of seven Persian folktales. These tales ‎have been selected for intermediate and advanced learners of the ‎Persian language. A simple and easy language has been used to ‎rewrite these stories with the intent to stay as close as possible to the ‎narrative tone of the original texts. ‎The selection starts with shorter and simpler stories, so that the ‎readers could eventually elevate their reading and comprehension ‎skills. ‎The new words in each story have been underlined and their English ‎definitions have been provided under an index at the end of each ‎story.‎ It is hoped that this selection would be helpful to those who are ‎studying the Persian language and encourages them to explore the ‎richness of the Persian literature beyond the pages of this book. ‎