The author, Sherif Erefa, has created a brilliant book titled “Why Does a Man Want It, and Why Does a Woman Refuse It?” This book is a simple and scientific guide that helps readers understand that most sexual relationships are more psychological and emotional than purely sexual in nature. When describing the various aspects of sexual relationships, the author uses words that are civilized and unrelated to those vulgar terms that can offend others. This book serves as a practical application of positive psychology, which will be of great benefit to many readers. I congratulate you, Sherif, Professor/Ahmad Ekhacheh, former president of the World Association of Psychiatry.