Kitab al-Sanawbar, also known as "The Book of Sandalwood," is an Arabic manuscript written in the 15th century by an unknown author. The book is a significant contribution to the field of perfumery, as it provides insights into the art of fragrance-making in the medieval Islamic world. The manuscript is a valuable resource for understanding the history of perfumery, as well as the cultural and trade exchanges between the Middle East, Europe, and Asia during the medieval period.