This volume of Christian Arabic Studies is presented to Father Samir Khalil Samir S.J. to mark his sixty-fifth birthday and his tireless efforts spanning almost four decades which produced many-sided fruitful activity and an extensive literary output in this field of studies. Father Samir, well known as the author of no less than 30 books and more than 500 articles (original studies and critical editions of Arabic texts), critical participant in the international debate concerning Muslim-Christian dialogue, and more importantly the enthusiastic and passionate promoter of the study of Christian Arabic Literature, reached the age of 65 years last year. To mark this occasion, a number of friends and colleagues were invited to contribute to this volume which is devoted to different aspects of the field of study which he himself baptized "The Christian Arabic Heritage".