Before you is the third edition of a unique book, the material for which the author has been collecting for more than forty years. This book is both a university for future parents and a conversation with a good friend. Renata Ravic shares knowledge on tokology - the science of healthy pregnancy, addressing both her own experience and the opinion of world famous doctors. In each letter, she speaks to her reader personally, telling with love and care how to prepare for birth, give life and raise a healthy child. The book is addressed to a wide range of readers.