Omar Khayyam’s Secret: Hermeneutics of the Robaiyat in Quantum Sociological Imagination, by Mohammad H. Tamdgidi, is a twelve-book series of which this book is the seventh volume, subtitled Khayyami Art: The Art of Poetic Secrecy for a Lasting Existence: Tracing the Robaiyat in Nowrooznameh, Isfahan’s North Dome, and Other Poems of Omar Khayyam, and Solving the Riddle of His Robaiyat Attributability. Each book, independently readable, can be best understood as a part of the whole series. In Book 7, Tamdgidi shares his updated edition of Khayyam’s Persian book Nowrooznameh (The Book on Nowrooz), and for the first time his new English translation of it, followed by his analysis of its text. He then visits recent findings about the possible contribution of Khayyam to the design of Isfahan’s North Dome. Next, he shares the texts, and his new Persian (where needed) and English translations and analyses of Khayyam’s other Arabic and Persian poems. Finally he studies the debates about the attributability of the Robaiyat to Omar Khayyam. Tamdgidi verifiably shows that Nowrooznameh is a book written by Khayyam, arguing that its unreasonable and unjustifiable neglect has prevented Khayyami studies from answering important questions about Khayyam’s life, works, and his times. Nowrooznameh is primarily a work in literary art, rather than in science, tasked not with reporting on past truths but with creating new truths in the spirit of Khayyam’s conceptualist view of reality. Iran in fact owes the continuity of its ancient calendar month names to the way Khayyam artfully recast their meanings in the book in order to prevent their being dismissed (given their Zoroastrian roots) during the Islamic solar calendar reform underway under his invited direction. The book also sheds light on the mysterious function of Isfahan’s North Dome as a space, revealing it as having been to serve, as part of an observatory complex, for the annual Nowrooz celebrations and leap-year declarations of the new calendar. The North Dome, to whose design Khayyam verifiably contributed and in fact bears symbols of his unitary view of a world created for happiness by God, marks where the world's most accurate solar calendar of the time was calculated. It deserves to be named after Omar Khayyam (not Taj ol-Molk) and declared as a cultural world heritage site. Nowrooznameh is also a pioneer in the prince-guidance books genre that anticipated the likes of Machiavelli’s The Prince by centuries, the difference being that Khayyam’s purpose was to inculcate his Iranian and Islamic love for justice and the pursuit of happiness in the young successors of Soltan Malekshah. Iran is famed for its ways of converting its invaders into its own culture, and Nowrooznameh offers a textbook example for how it was done by Khayyam. Most significantly, however, Nowrooznameh offers by way of its intricately multilayered meanings the mediating link between Khayyam’s philosophical, theological, and scientific works, and his Robaiyat, showing through metaphorical clues of his beautiful prose how his poetry collection could bring lasting spiritual existence to its poet posthumously. Khayyam’s other Arabic and Persian poems also provide significant clues about the origins, the nature, and the purpose of the Robaiyat as his lifelong project and magnum opus. Tamdgidi argues that the thesis of Khayyam’s Robaiyat as a secretive artwork of quatrains organized in an intended reasoning order as a ‘book of life’ serving to bring about his lasting spiritual existence can solve the manifold puzzles contributing to the riddle of his Robaiyat attributability. He posits, and in the forthcoming volumes of this series will demonstrate, that the lost quatrains comprising the original collection of Robaiyat have become extant over the centuries, such that we can now reconstruct, by way of solving their 1000-piece jigsaw puzzle, the collection as it was meant to be read as an ode of interrelated quatrains by Omar Khayyam. Table of Contents: About OKCIR--i Published to Date in the Series--ii About this Book--iv About the Author--viii Notes on Transliteration--xix Acknowledgments--xxi Preface to Book 7: Recap from Prior Books of the Series-1 Introduction to Book 7: Tracing the Robaiyat in Omar Khayyam’s Artwork--11 CHAPTER I--Omar Khayyam’s Literary Work “Nowrooznameh”: An Updated Persian Text and Its New English Translation for the First Time--21 CHAPTER II-- Omar Khayyam’s Literary Work “Nowrooznameh”: A Clause-by-Clause Textual Analysis--147 CHAPTER III--Unveiling the Open and Hidden Functions of the Mysterious North Dome of Isfahan: How Omar Khayyam Designed, for His Commissioned Projects of Solar Calendar Reform and Building Its Astronomical Observatory, Iran’s Most Beautiful Dual-Use Structure for the Annual Celebration of Nowrooz--367 CHAPTER IV--Omar Khayyam’s Arabic and Persian Poems Other than His Robaiyat: Translated into Persian (from Arabic) and English and Textually Analyzed--497 CHAPTER V--Did Omar Khayyam Secretively Author A Robaiyat Collection He Called “Book of Life”?: Solving the Manifold Riddles of His Robaiyat Attributability--573 Conclusion to Book 7: Summary of Findings--677 Appendix: Transliteration System and Glossary--731 Cumulative Glossary of Transliterations (Books 1-5)--744 Book 7 References--753 Book 7 Index--767