This book “Advice to mothers or necessary instructions for pregnant women, women in labor and maternity”, written in 1866, is a unique monument of medical literature of the XIX century. Its content and authorship make it an important source for both medical historians and collectors of ancient books. Contents description: The book covers a wide range of issues related to pregnancy, childbirth and infant care. It includes: Advice for pregnant women: Recommendations for lifestyle, nutrition, and physical activity during pregnancy. Warnings from bad habits and factors that can harm the future child. Maternity assistance: Practical instructions for women and their assistants. Description of the first actions necessary after the birth of the child. Caring for babies: Basics of newborn care, including hygiene and nutrition rules. Tips for the treatment of common diseases of infants. Pedagogical principles: Basics of physical education of children. Advice for mothers to care for older children. Pregnancy Calendar: An illustrated guide for tracking the timing of pregnancy and preparing for childbirth. Importance of the book: Author: Author K. E. Font Deitch - a famous obstetrician of the XIX century, owner of a state adviser and a member of international scientific societies. His work is based on relevant medical research and practical experience at the time. Historical value: The book is a testament to what medical and educational science looked like in the second half of the 19th century. Reflects views on health, hygiene and education. This book is a unique object that combines scientific and historical value. It can become not only part of a private collection, but also a valuable exhibit for museums or archives. Cover saved, there are traces of the hour (small scuffs and bends at the edges) There are stamps of libraries