"Cyber Crime Against Women and Children—Preventive Measures" is a comprehensive study of social media crimes against women and children and gives suitable recommendations to take effective measures to prevent crime against women and children. This book is an effort to discuss that social networking sites such as WhatsApp, Twitter, Facebook, Snapchat, Instagram, YouTube, etc., are an integral part of our life. The Internet provides immense opportunities to its users, but at the same time, there are numerous corresponding risks. These burning cyber crime issues of modern society are described in detail in the book. This book has twenty chapters and a deep discussion on the book titled "Cyber Crime Against Women and Children—Preventive Measures". These chapters are here entitled as this way to describe all levels of cyber crime against women and children and preventive measures. This work has been designed in these twenty chapters are: Cyber Crime Against Women and Children—Challenge to the Society, Cyber Crime Against Women and Children—Causes and Impact of Social Media, Categories of Cyber Crime Against Women and Children—Side Effects, Area of Cyber Crime and the Victimization of Women—Issues and Challenges, Cyber Crime Against Women—Challenges to the Society, Dimensions of Social Media Crimes Against Children, Role of Social Media in Spreading Child Abuse and Crime—Risks and Prevention, Cyber Stalking—Technology Form of Sexual Harassment, Photo Morphing and Victimization of Women, Child Trafficking as Cyber Crime—Illegal Deal in Children, Child Pornography—The Depiction of Erotic Behaviour, Cyber Bullying Against Children in India, Child Trafficking—Violation of the Rights of the Child, Investigation and Trial of Cyber Crime Against Women and Children, Cyber Crime and Victimization of Women and Children—Laws, Rights and Regulations, Remedies to Deal with Cyber Crimes Against Women and Children, Cyber Crime Preventive Measures Against Women and Children, Cyber Safety Tips—Awareness and Suggestions, Cases Study Regarding Position of Women and Children in the Cyber Era, Statistics on Cyber Crime of Women and Children in India—Status and Position. The book explores varied dimensions and visions on women and children's Cyber Crimes perspective. All chapters serve as a valuable reference tool for lawyers, police, government officials, academic research specialists, teachers, students, policy-makers, human rights activists and all concerned people and society. A sincere attempt has been made in this work to highlight the problems faced by society, the laws to safeguard their interests, the judgements given by various courts and analysis of data about cyber crime against women and children. It is hoped that the present work will contribute to the effort to engage in a dialogue on the question of these crimes and compelled the editor to select this topic through work. The editor is greatly privileged and deeply indebted to Hon'ble Lok Sabha Speaker, Shri Om Birla Ji and Hon'ble Chief Minister of Rajasthan, Shri Ashok Gehlot Ji, for giving their blessings to success this book by message.