At the opening ceremony of the 35th International Islamic Unity Conference, the book “The Encyclopedia of Ayatollah Tsakhiri” was unveiled, which was published by the Research Institute for Proximity Studies. The ceremony was attended by Ayatollah Seyyed Ibrahim Ra’isi, President, and Hujjat-ul-Islam wal-Muslimin Dr. Hamid Shahriari, Secretary General of the World Forum for the Proximity of Islamic Schools of Thought, and guests of the conference. It is worth mentioning that this book is a collection of scientific works and scientific ideas of the late Ayatollah Sheikh Mohammad Ali Taskhiri, which has been compiled and published in 12 volumes.