راهنمای زبان‌های ایرانی: جلد 1: زب‍ان‍ه‍ای‌ ای‍ران‍ی‌ ب‍اس‍ت‍ان‌ و ای‍ران‍ی‌ م‍ی‍ان‍ه‌ الفارسية 1445

The book Compendium Linguarum Iranicarum, edited by the distinguished German Iranologist Rüdiger Schmitt, is a comprehensive and authoritative reference in the field of Iranian linguistics. First published in 1989 in Wiesbaden, it remains one of the standard and widely cited sources in Iranian studies.

Bringing together contributions from leading scholars, the volume offers detailed analyses of phonology, morphology, syntax, and the historical development of the Iranian languages. The work is organized into five main sections: theoretical issues and the prehistory of the Iranian languages; the Old Iranian period (including Avestan); the Middle Iranian languages such as Middle Persian, Parthian, Bactrian, and Sogdian; and, subsequently, an overview of the New Iranian languages. Extensive indexes and bibliographies further enhance its value as a practical research tool.

Emphasizing historical continuity, structural diversity, and interdisciplinary methodology, the volume presents a clear account of the place of the Iranian languages within the Indo-European family. Compendium Linguarum Iranicarum is an essential resource for students and scholars of linguistics, Iranian studies, and historical research, effectively bridging the world of ancient inscriptions and living modern languages. The first volume of the series focuses specifically on Old and Middle Iranian languages.