Endocrinology Department of our university Prof. Dr. Okan Bülent Yıldız served as both a field editor and a writer for the 2022 edition of the book “Oxford Textbook of Endocrinology and Diabetes”. The preparation of this book, which took three years, contains nearly 500 works by international authors, and to the female reproductive endocrinology section of our university, Department of Obstetrics and Gynecology, Lecturer Assoc. Dr. Sezcan Mümüşoğlu contributed with his works.